Banff is not far from me, do you have any pics of the car to see if I recognise it?
Sunnyhill motors is fine, I have used them (bought my evo form them), no problem there for me.
Turriff tyres are great for tyres and alloys, fitting service etc is fine. Powerflow systems have been a bit of a hit or a miss, one of my mates had a system form them that fell off twice, lifetime guanentee though I think so got it sorted ok.
Never used wallace so cannot comment.
Do you know who fitted the new engine?...because you can just contact the garage that did!
Your quite right trying to find out the history of the car, I would like to know if it was my car!
Rich