We always say anything is doable with enough time and money!
Anyways, don't see why the condenser wouldn't fit. that shouldn't be a problem.
Just wondering if you happen to have stock 2002 evaporator and lines, and if the lines had the same fittings for the M20 condenser (doubt it). If not, making new lines is not that expensive or difficult.
Also curious to know what mounting looks like on the 2002 condenser. Would it possibly bolt to the M20 bracket? (also doubt)
We just put an M30B35 in an E30 that had an M20B25 in it. The M20 compressor bolt right up to the M30 block/bracket.