[Donut]

I think a custom frame would be preferable if it is possible; but if you don't have the resources to pull it off effectively, and want to save yourself some time, the kit frame is definitely a good option. So many pre-drilled holes give you lots of nice places to bolt stuff onto (not that you need pre-drilled holes, as I assume your team owns a drill, but they're nice), and the frame is extremely adaptable, being able to fit most designs you can think of (cut a few frame pieces and you can make almost anything fit).

The only thing to worry about with the kit frame is strength and possibly weight; not strength from taking a hit and coming apart, but more from a mechanism or large amount of weight causing the C channels to start to collapse. We had to wedge a piece of extruded aluminum into the frame to keep it from folding in underneath our motor mount for our conveyor belt. Weight I suppose could be an issue, though we haven't had it be a problem yet.