Lovely job on the respray. Nice to know what paint to use for a 1994 Marin colour match.
I'd look at perhaps upgrading the crankset from the original pressed steel Alivio offering. The frames are pretty similar and lightweight across the 94 range with the components bringing the major differences.
Being a bit picky; the DX rear mech was discontinued in 1993, and seeing as you've gone to so much effort to get the original paint and decals period correct, it sticks out as a bit of an anomaly.
Although it would've originally been Alivio throughout, I reckon that full LX M563 would be perfect for that rebuild.
Good work though. (and moved to 'readers bikes' as requested)