These saws are tippy with the table and motor removed for transport. The base will scoot out from under you when you tip the saw so strap the base if...
Mike Farrington on YouTube has a video where he refurbishes one of these saws. A good watch to see the disassembly and the various components, though...
You practically stole it at that price. You should be prepared to replace all the bearings. The previous owner spun one of the bearings on the lower...