Looks like an average restoration is around $300 for a working unit w/o critical issues. I see restored units from $700-$1500. I have my eye on an unrestored listed for $300 locally so no shipping or taxes. Better to get a working unit with unknown issues and have it restored or buy one advertised as restored? Chance either way, but would I be better off to buy the unrestored at a lower price? Looks like a smoker owned it. I see dirt on the inside. Has all knobs, glass intact etc. This will be my first Marantz. Thanks