"excellent condition" are the operative words, there.
If it's truly in excellent condition, here's my opinion:
- $299 or below is phenomenal, literally a steal.
- $300-$450 is an appreciably good deal.
- $450-$550 is an average-to-good deal.
- $550-$650 is still a good deal, but is a lot sweeter if RC-71 remote, DX-4D units & rolling rack are included.
- $650 and above would only make sense if the unit was "new/oldstock" or "mint-in-box-never-been-used" type of gear.
That's by today's bid estimates. Your question quoted "excellent condition", which is a huge factor when pricing this type of gear. Remember, the 38 sold for about $2000, when new.
Any added accessories are good. Those accessories are very costly on their own.