Check out this video recently posted. Shows some good views of a 944 turbo. A nice one too,
1986 Porsche 944 turbo [951] - YouTube
944 turbo on a track with various BMW M3's and 911's. This shows it's track capability.
TN Sleeper Fast 944 Turbo - YouTube
the 944's engine is basically half or one bank of the 928's engine. Most of the 928 guys call the 944 the baby brother.
The biggest maint areas for the 944's:
Timing and balance shaft belts and rollers: DIY about about $250 in parts or around $1200 in parts and labor for an indy shop. Fairly easy to do.
You may want to include the water pump while you're there. I have not and changed timiong belts multiple times without changing the water pump.
Clucth job is where it get expensive. About $2500
Hope I'm not boring the rest of the 986 crowd.
Cheers.