I must say luckily over here in MTL, we have 2-3 Brit suppliers in a 1/2 radius, and a few repair shops too, so finding parts has not been much of a problem for me (the internet really helps too)
As i have worked for a new car dealer for most of my working life, thankfully I am able to avoid buying most, if any automotive parts from Crappytire, saving them for more of a depanneur when stuck on Saturdays after everyone else has closed up shop......
(though as has been said before , they do make good tools for the hobbist, and have great specials on oils and such...so I do spend some time with their weekly fylers in the "office/library" reading room {cough-cough}
Ron.