Lot of 3 Huck Rivet Guns (2-Model 200 1-Model 353) Assortment Of Nose Assemblies

Description

I purchased these tools from an auction.  They are sold AS-IS, with no returns.  I have been in the woodworking industry for 25 years, so I have a fair amount of knowledge of air tools, but I have absolutely NO experience with sheet metal tools.  I plugged these units into my air compressor to "test" them, although I am not sure what, exactly to test on them.  One of the model 200's and the model 353 appear to make a full stroke when the trigger or switch is activated.  The second model 200 does not make a full stroke (although it does move), and also seeps a little oil. As to the nose pieces, I have no idea what particular tasks they are suited for, nor do I know if all the parts and pieces are there.  When I bought them at the auction, most of those pieces were just loose in the case of the model 353 gun.  They do have part numbers etched into the side of them though.
With my professional woodworking background, I am rarely stumped by tools.  When I saw these at the auction, I had no idea what they were.  No one else did either, including the auctioneer.  In my research after the auction, I discovered what they are and what they are used for.  I also discovered what they cost when new.  I realize that these tools are not new.  In fact, they are well worn and very well could need repair.  In light of this, I don't really know what the true value is.  Please feel free to make me a fair offer. However, I will NOT break up the lot.  You must buy it all.  They are already packed in a box that is 24" x 15" x 15" and weighs 80 lbs.  The shipping will be expensive, and I can't really do anything about that.  I will ship them out, fully insured, within one business day of receiving payment.  Once again, the lot is sold As-Is with no returns.