Custom West-Coast Design Feedback

[daliberator]

Hey CD!
This year in the off-season, my team is going to work on a custom drivetrain. It looks like it's gonna be a west-coast, so I threw the attached design together.

Its main structural element is 16th inch steel sheet. For main supports, it has 16th inch steel tubing of varying heights, as well as a 8th inch steel chain-guard (For lack of a better word). The bearing blocks are 8th inch steel and the are at an interference fit with their respective bearings. I didn't know exactly how much to drop the center bearings, so I just guessed at 3/16ths of an inch.

This is the first drivetrain I have attempted, so any and all feedback is welcome.
Thanks,
daliberator