I wouldn't worry about the accumulator but I would make sure and put a vaccume on the system after you get the compressor on to remove any moisture from the system. Not sure what to tell you on the "new" ver "re-built" issue, guess you need to weigh the price differance and go from there. I would much rather have a new one but don't know what cost differance we are talking about... Good luck!!
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92GT all the free stuff and a few bolt-ons, lowered with Ebiach's and Koni's, Kenny Brown subframe connectors, lower G-brace and jacking rails. BBK upper and lower control arms, polyurethane bushings all around and Ken Bell blower, ram-air, 80mm mass air, etc.