They are both R4 compressor types, but the one for the GP is going to have a vbelt pulley on it, which isn't easy to change. If you were to manage a pulley change and maybe cutout switch on the back, it should bolt up. The Ac lines are turbo specific for the GN/TType.
There are vendors that have the lines in both raw aluminum and black in stock.
I just went thru the process of adding a compressor back after being deleted for years, nice to have the AC back.
Good luck,
Mike