I drove this car for 4 years. The hardest part was getting people to help, that and the cost of tires.
After a while, knowing in the back of my head that if I hurt anything it would be the next lifetime before I'd be able to fix anything. Engine was 35 grand, gearbox was 18 grand, shocks were 12 grand, carbon fiber body, the car was a work of art. One of the most developed, fastest 914's in the world. It ran in GT2R against all the new supercars (and held it's own).
I bought it in pieces from the builder (he retired) and put it together in my garage. Luckily the guy was meticulous, and kept immaculate records, so with all the data i was able to hit the track without having to do much development on my own. I was a good custodian for the car, it's now being raced by a hotshot in New Jersey and winning races.
Now I have my 135 that I've set up for autocross. Much more casual and affordable.