1. No, not according to Alldata for a 92 model - expect other years are the same.
2. You "could" just vent to the atmosphere, I don't think it's illegal for 134 like for R12 (not the preferred solution - however if you can't get the car to a place to pull it down, then oh well).
3. Don't know, but the drier will be toast soon. Drier replacement is always recommeded with compressor replacement because freon/air/oil/desicant/moisture in an open and used drier combine in some nasty way (or so I'm told - don't know factually). The compressor might have it's life extended by occasional rotation to keep oil moving about internally. Since the freon has to go anyway, and the hoses have to come off, why not remove it and put it somewhere cool & dry, i.e., somewhere with A/C.
give me an e-mail address and I'll send you the text for an engine pull so you know what's involved. mine is:
lbridges@cfl.rr.com