[gliding_serpent]

On the cost of rebuilding an engine from the ground up with new parts... a few years ago BMW classic build a new 72 or 73 2002Tii out of new old stock parts. The parts cost over 150,000$.

I always find the cost analysis stuff of DIY interesting.

I make more per hour than my mechanic charges, so I lose money in DIY. But I do what I can anyway, because it is not about money, but rather the enjoyment of my hobby.

Used parts are great if you don't live in an area where shipping eats away at your savings.

Used parts are also just that. Buyer beware. Sometimes is is nice to spend a few more bucks for something new and not have to worry about it. The trick is knowing what you can source new and used without compromising the build reliability. Used bearings no. Used rings no. used sensors no. Used gears probably. Used 7:31 R+P... depends.

If you enjoy searching for parts deals, than that is great too, you will probably find more deals. If you have a deadline and just want to drive your car, than the savings here and there may not be worth the delay.

It all depends on what you like. I prefer driving my car to anything, so my priority is always to minimize the time my car is out of commission. Mind you, now that the big work was done by a pro last year, I get to tinker in my garage over the winter. I also enjoy learning about theory and other armchair stuff, but I can still to the holy trinity of brakes, oil and basic suspension. I have been adding stuff like electrical, interior and tuning to my resume.