I am the Internet representative of the collective of crickets that inhabit the space inside and outside of Tiff's current dwelling. We sneak in occasionally to use her computer. Each one of us takes a key, and we work together to construct human text. I am the mind behind what you read, the hive-mind, if you will (which isn't really true, since we aren't of the swarm mentality). So far, Ced has been most helpful. We will spare him when the second Great Gryllidae Uprising comes to pass...
Ok guys lets now be complete ass holes now shall we. To answer your question, the only one I could think of would be a mini phantom, but Im not sure where to get one and if they are in fact smaller than a mini. But that would put you into pump play. As far as semis go though, Im not sure that there is anything smaller. How big are you anyway? I started to play when I was in the 4'8"-5'0" height range and I didn't have any problems with gun size, maybe weight but not the size of it, anyway I hope this helps.
I appreciate your help, but you're still over 4'7.5" taller than me, so this probably won't work. I can't work a pump handle too well either, since they take even more force than a trigger.
I suppose I could gather the rest of my friends, and we could combine or work together to operate a single marker.