Jay...when the lower gets here, I'm gonna document the lower to upper mod which will be different from F-16#3. It'll be a lot more intense in strength trying to achieve a degree of crush proofing of the lower so it won't buckle in a moderate impact of a less than perfect landing....you know where I'm headed here. Since their out of stock of bare bones kits is basically INDEFINITE/UNKNOWN.....I gotta make this last the rest of the summer, so I'll build it well. When things get a little better around here...I may opt for the Kyosho F-16 or maybe even the A6 Intruder.