thanks to all who've replied, most helpful.
I have another stupid question.
I'm off to look at a Sierra on sunday as a potential donor. Its a 2.0l 1993 model, it has ABS.
Is one with ABS suitable? Does this transfer to the kit car complete and so will that have ABS?
Doh, I clearly have a lot to learn. (better to ask now than after I spend the cash (not a lot

)
cheers