Gear seem springy time will tell, I think the looks are affected more than the durability.  Construction wise, if you are going with a standard electric or hard mount of a glow engine everything should be straight forward.  But for mine, converting to a Hyde Mound created a few challenges for Raiko Potter with RaikoDZigns.com who actually did the build for me, but all were quickly remedied.  As a side note, check all anti rotation pins and canopy mounting points mine had little to no glue on a couple.  Also, one wing panel had an anti rotation pin for the bolt center bolt mount instead of a wing bolt mount, again quickly remedied.