No reply from this OP after numerous suggestions here.
I bought $25k PMC MB2SE from a doctor in Canada who had obviously looked after his system based on the many photos he shared. I paid less than half as he was looking for a quick sale. I’ve owned PMC before and these arrived well packed in original packaging. Shipping is another issue and ensuring palletising if necessary will give you peace of mind.
Going to see the used one’s will provide you with a look at a home site versus a shop experience with burned in mature sound, while considering the room situation as a factor.
Like others have said, make that visit and share your discovery with us here.