RE: What Are Some of the Easiest Building Kits?
Trainer kits are a good place to start since they assume (in addition to being new to flying) you are new to building and include very clear complete instructions. My first kit and plane was a Great Planes PT-60. I was very concerned about building because I'm pretty clutsy but it came out great. If he does not want to build a trainer then the SIG 4-star series would be my recomendation.