I like it! One suggestion though. For something like that, you may want to go with a welded aluminum 1x1 or 2x1 frame, which will save a massive amount of weight. However, if you don't have access to a welder, it provides either a good time to learn, or a bit of an issue (I'd prefer the lack of welding to be a good opportunity to learn to weld).

Other than that, looks good!