I have one of their steamrollers and had to deal with the rivets. PITA but I had no other choice the was in bad shape - it was like it was dropped from a 3 story building! You might be best to leaving it alone.
As for shipping from live auctioneers, my boats cost me 80+ in shipping from NJ. Granted it was a bit box with 4 Weeden boats in it. Between all the fees, tax, shipping I'll think twice getting anything like I did with my boats (but I do love my boats)!