Should I run or take a look at it??

Thanks for all the replies .Wife and I looked at the inside and was in great shape. No evidence of any kind any leaks, stains or odors. Just needs a good exterior wash and roof wash and touch up the caulk. He accept the amount we offered which is lower than Low retail with options. Told Owner we want think about it and let him know Monday. Nice unit these Nash 22H models.