May not be the right place but have found this very useful from the U.S.
Parts all/general you can buy most parts at these place, from several categories -mechanical, engine, interior, gear box etc..
Stoddard
http://stoddard.com/ - have about 90% of what you could need for these cars, especially mechanical, all the nuts and bolts and hardware, year specific parts etc
NLA -
http://nlaparts.com/store/ Stoddards sister company - you would be surprised what you will find here that they remanufacture or can buy new
Mainely Custom By Design
http://mainelycustombydesign.com/ (now owned by Precision Matters)
Precision Matters
http://www.precisionmatters.biz/tips.php excellent selection of specialty tools and parts and Ron is a great supporter of the Regisrty
Sierra Madre
http://sierramadrecollection.com/ - a lot of good replica parts, especially lighting and electrical stuff
Auto Foreign
http://www.autoforeignservices.com/ - they remake a number of hard to find stuff thats no longer made anymore
Pelican
http://www.pelicanparts.com/ - great all around parts source and go
Zims
http://www.allzim.com/index.html - another great shop and parts place. they are a wealth of knowledge and imho a good place to go for distributor parts and alternator kits (but they do much more)
Paragon
http://www.paragon-products.com - can have some competitive pricing on suspension components (koni's for example)
wolfsburg west
http://www.wolfsburgwest.com/ vw parts place that is a good source for the few cross over parts, like headlight lenses, and headlight seals, headlight clips and parts
Parts Klassik
http://partsklassic.com/ - have not used yet but their reputation is growing as a great group of guys, and fantastic parts
Auto Atlanta
http://www.autoatlanta.com/ mostly 914 experts, but they have some good stuff
automotion/ecklers
http://www.automotion.com/ used to be the place for a lot of people to go to for parts - have been bought and sold many times now, and the last of the big parts catalog companies
Interior and seats
Autobahn Interiors
http://www.autobahninteriors.com/ - great source for interior pieces, carpet and restoration
Autos International
http://autosintl.net/ - great source for interior pieces, carpet and restoration
GTS Classics
http://classiccarseats.com/ - great source for after market and reproduction period correct sports purpose seats
Vintage Seats
http://vintageseats.com/ - great source for after market and reproduction period correct sports purpose seats
Gage repair and restoration
North Hollywood Speedometer
http://www.nhspeedometer.com/ - gage restoration
Palo Alto Speedometer
http://paspeedo.com/ - gage restoration
Keys/locks
Tony Euganeo (the key guy)
http://www.lockandkeyid.com/ - Keys! Locks!
Distributor rebuilds
Glenn Ring
http://www.glenn-ring.com/ distributor rebuilds
Benton Performance
http://www.bentonperformance.com/ can do rebuilds or make your 009 into an RSR0012
Gearbox/Transmission rebuild and repair
Carquip
http://carquip.com/ great place for anything gear box related, parts and rebuilds. Also sells new and used parts,
Salvage/used parts
Eurpean Salvage Yard (EASY)
http://easypor.com/ - the best porsche salvage yard in the world
Parts Heaven
http://partsheaven.com/ - another good porsche salvage yard
DC Automotive
http://dcauto.com/ largest indoor Recycling Facility for Porsche in the US
Suspension and sports purpose
Elephant Racing
http://www.elephantracing.com/index.htm - for anything suspension
Paragon
http://www.paragon-products.com - can have some competitive pricing on suspension components (koni's for example)
Wevo (Windrush Evolution)
http://www.wevo.com/ - boutique supplier of sports purpose parts (high end shifter components, engine mounts, transmission stuff etc)
Seine Systems
http://www.seinesystems.com/ - boutique supplier of sports purpose, light weight parts
Rebel Racing Products
http://rebelracingproducts.com great source for sports purpose parts, especially suspension components.
Jwest
http://www.jwesteng.com/shop/index.php really great shifter and coupler parts
body panels
Restoration Design
http://www.restoration-design.com/ need to replace a body panel - you need to know these guys
brakes - rebuilds, restoration and parts
PMB
http://www.pmbperformance.com/catalog.html - the go to place for brake restoration and brake parts
rust prevention
por 15
http://www.por15.com/
rust mort
http://www.autobodytoolmart.com/sem-...t-p-15975.aspx
misc racing/automotive supplies
jegs
http://www.jegs.com/
Summit racing
http://www.summitracing.com/
Pegasus racing
https://www.pegasusautoracing.com/