Great Planes Master Caddy, I built the kit, but would recommend the ready to use version for the few extra bucks. I like mine and built and painted it the way I wanted it, but considering all the time I put into it, I'd recommend the prebuilt version. Another item I built for mine is what I call my "mars rover" so that instead of carrying my field box out to the field, I can roll it out, like on a small collapsible 4 wheel dolly so I can fit it in my car easily..