Bob, hope it’s works out for you and if not it was a small deal. I think most of the real dealers are stand up guys, at least the ones that have been in the trade for awhile. The ones that I think are more likely to take advantage of someone are the guys who have an ffl as a hobbyist 
The good dealers I feel wish to have a good reputation 
There have been a few in the past that I have know well that while I liked them personally I would not do business with them as I did not like what they were doing in the trade.
A few are still around.
John Boyd