hi there quick question and after some input from unbised people on here ???

got chatting to a guy as he saw my cosworth ,and he says oh ive got a couple of those engines and boxes in my shed !!

anyway goes to see the fella and he has a full motor 2wd and t5 box ...
both are in good order and the complete motor has valve cutouts and on .25 mains and bigends
also says the box is a good t5 also

and he has a totally std 205 bottom end for a cosworth inc a std std crank ,rods and pistons but no head on this one

he told me to make an offer ,now i dont want to rip him off or rip myself off but would like the bits so what do you guys think is fair to offer him ?????

and pls mods this is not a for sale ad thx

any help is appreciated need to see the guy later on !!