I would not get a one sheet gel-backed. Gel backing is a process that is better for heavier posters like inserts and half sheetsgo linen, if you plan on doing anything, although I have no idea why you would. That poster would look just fine in a frame, as is.
Great idea, ARI. Thanks! (Where do I find that kind of tape? Call me clueless...)RICH and JEFF--I think you are right. I'll just frame it soon. THANK YOU!