97s had a different style alternator bracket than 98-03, and 04+ had even more different. You could switch the bracket to a different style quite easily, it's just a matter of a few bolts. Take care when removing the old bracket, the lower heater hose extension can crack the front cover very easily if you aren't previously aware of it.
Motor mounts go bad, replace it with a solid one, or make the old stock one solid with a tube of polyurethane caulk. The supercharger coupler is easy as well, sseilmnop sells kits with everything you need, just pm him.
The oil leak, depending on where it's coming from, could be an easy cheap fix, or a still cheap but slightly difficult fix.
The AC, I would get it recharged after you get everything else fixed, and professionally. You won't need it charged again for years.
There's much more information on here, a few minutes and the search function could save you a lot of time, money and heartache. Good luck with the car!
