you can see approx what i spent on the conversion here
http://986forum.com/forums/showthread.php?t=9121
i posted in the classifieds and it seems there was more interest in my conversion.... than what i want to sell...
as far as working in there...i didnt personally but i watched (and even helped a little) the mechanic work on the conversion. the car is put on a lift and basically lowered onto the engine and then attached to the mounts and cv's...as far as on the top it was just the a/c, some wires/plugs and a couple of tubes that had to be connected so it wasnt so bad. the serpentine belt was put on after the engine was installed (because of having to hook-up the a/c compressor and that was done by removing an access plate behind the seats.
no dyno but the engine is supposed to put our around 310 hp and 245 torque