Ken isn't even in the same zip code with me when it comes to sanding!!! I'm going to make a statement and people can argue with me tell the cows come home. With the kits we have today, laser or crush cut, anyone that understands the terms used in an RC plane, things like spars, ribs, formers, center sections or most any other term used should have no problems building any kit sold through someone like Tower. Some may be a bit more trouble but none of them are beyond the means of anyone with basic skills and tools. The instructions that come with the GP or TF kits are outstanding and most anyone can follow them. The US is one of the good ones from what I have seen, not a real Kaos but close enough. There are a lot of choices so just keep looking at the kits and make a choice. 200 hours goes by a lot quicker then you think and you end up with a plane that could last for decades and not seasons!! Don't let something like the Extra scare you away from it, not a lot of difference between something like it or the US when it comes to building. Read some of the build threads right here on RCU, there is always plenty of help with a build here too!!