how much is a 911E engine worth

[ratty65]

i have a engine which i believe came out of a 1973 911E
the engine number is 6230582. it came out of a crashed car and has been sitting for around 10 years
the engine turns over and appears to be complete except for the front part of the air box .
i am considering selling it but before i put up a for sale add i need to get some idea of what it is worth obviously it is an unknown engine
so would need rebuilding .
any help with this would be appreciated .

(also considering selling my VERY VERY rusty uk RHD February 66 911)

[ratty65]

thanks for all the pm's offering advice and guidance
i will reply to you all as soon as possible

[preA54]

Sent you a PM.

cheers

san