I would get castrated before Id buy from a garage.
I used to think like that, but then I lost the motivation to buy something cheap and half rebuild it. I also lost the space to do Serious Work as well. next time I buy a car Ill either lease-hire it, or buy at 12 months old. These days I just want to turn the key and get places, not too arsed about anything else. Ill do basic servicing and repairs, but little tricks like swapping axles, and replacing full engines isnt something that interests most people, even when they do know how to do them.