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Let me throw in my 2¢ worth.
I do a lot of A/C repair, including having to recharge my '96 minivan this year, and I'm inclined to think it is no overcharged, mainly by the 65 pound suction. I would be inclined to recover the charge, pull a deep vacuum, and WEIGH in a fresh charge of R-134a. Then see how it works, before putting all the extra work into it.
As far as the TEV and Accumulator, that would be the next logical step. I've read that many car A/C systems have a drier in the accululator, which would then warrant changin it out when the system is opened up.