I may have found my donor, but it is seriously rough...

[jasongray5]

I may have found my donor, but it is seriously rough...
It belongs to a friend of mine and he works for an agricultural contractor, (alarm bells already ringing ) Its a 2.0 Giha i think DOHC and he says if I want it I can have it for free.
However, since it failed its MOT in the summer, it has been used as a field car and a way of letting off some steam after a hard days work.
This involved racing it accross a ploughed field, running it on red diesel, doughnunts gallore and many many more hours of fun?

My question is, Will this have damaged the components that we need for the build? bearing in mind I want to use a bike engine?
comments please
Many thanks Jas Gray