I can testify to the labor being expensive even though parts aren't really that expensive if you know where to look... Rennlist, Pelican, etc.
I took my car to a guy who worked on "sports cars" to do a clutch job, t-belt and waterpump. Total cost was like $2500. I said do it, but the guy wanted money up front because he couldn't cover the parts. I was like bs. That t-belt broke 8 months later for no apparent reason and I simply sold the car for $875. But the car was a beater and I beat on it. Before I let it go, I had a bunch of stuff replaced by my wife's ex (vw/porsche guy) and then I had some Porsche/BMW tech look at some issue I kept running into. He raped me in labor and the problem was simply a coil reference wire or something. The car sat for years before I bought it from a scheister used car dealer that sold German cars. The car was a blast with some mods (even N/A) but then after that t-belt snapped I had to cut my losses. It was a sad day. The car was towed away the same day I flew to NJ to pick up my rice machine crx. Since I couldn't get shop time to keep up with the 944 the crx seemed more appropriate for my situation. Now I have a garage and there is an empty space in it begging for something.... something I can't afford