Well, I can only say what I gave for a set. A fellow stovebolter sold me the complete set for $50. I then had to buy the temp guage, buy a reface kit (about $12.50) and shined up the chrome bezels, painted them. The speedometer head was worn pretty bad and it set me back about a $100 bucks just for the NOS head and calibrating it. I've seen them advertised from $50 to $125. Do a search in the parts for sale forum and you can get an idea what others have sold for. Sometimes bolters will help another bolter if he converts to digital or so forth.
you may as well go ahead and take some pics!!