The OEM Supra A/C compressor is a 10P15C. The one that came on the 6MGE is a 10P17VC.
Without major work it will not work on a MK II Supra. I just compared the two and the mounting holes are ~10mm further apart on the 10P17VC so you'd probably also need the mounting bracket, or significantly modify what you have. The alignment of the inlet and outlet is also quite different (plus the top plate the hoses screw into isn't interchangeable - I checked). Plus there is an electrical connection to the compressor (on the 15 the only connection is to the clutch).
It looks like it will fit lots of cars in the late 80s-early 90s (Toyota, Acura, Honda, Mercedes.....) assuming 10PA17V is the same.