I have been reading the ron champion book and been looking at websites but can decide what donor car i should use. I am on a tight budget (under £150 for donor) and am a beginer. What is the best option to go for? The book says escort but there are many other views and they are hard to find. Are sierras any good? please help! Thanx

Depends on what you are going to use the car for. The flip-a-coin approach says
. .if you are going to enter the Locost formula, go Escort. if you want a car for road use, go Sierra.

Or get a cortina MK4/5 and use all as donor,slightly wider axle fills the wheel arches a bit more as well.

and comes complete with front uprights.....

on a tight budget IMO cortina makes best sense...