I have a backrest that I believe will fit the 1st gen Venture...it's been laying around in my garage forever and I have no use for it. Just needs the bolts to attach the mount to the bike. Free to the first person that steps up to the plate. You pay the shipping.
I am located in Kitchener, Ontario, Canada.....you figure out the shipping to wherever you are. The box that it fits in in 19" long, 12" wide and 9 1/2 inches tall....I'm not a fisherman and don't have a scale so I cant even guess the weight. Willing to meet somewhere if not too far away.