Thots from a Young Eagle Pilot
I've flown something over 100 Young Eagles, of all sizes and shapes. Assuming an average rudder pedal setup, you can likely move the setback forward and use a couple of pillows to get close enough to the rudder pedals to be OK. Some of the Young Eagles just could not get to a setup where they could reach the pedals so they didn't get to use the rudder. Oh well, those kids were very young and were going to grow taller anyway. That said, the hard part is, if you move your own self forward far enough, you may be so far forward that you limit aft stick travel, in which case you're going to have to bite the bullet and move the pedals aft, and that's completely doable even if it involves an A&P or some other variety of competent mechanic. Upshot of all this, don't let this concern stop you from buying or building an RV.
BTW, I worked for a Grumman dealer years ago and we were just never sure why they didn't catch on. The Tiger's virtues are not unlike the Vans airplanes' virtues.... easy to fly, good performance, excellent visibility, easy maintenance. And they're good-looking airplanes. What was not to like?