Looks good! I kinda feel like I have to turn in my man-card for not being able to build a suitable housing for the rollers, but without access to machine tools.... let's just say that it's tough to do fine machining work with a hand drill!
You see the thread on the proposed Yankee Ingenuity IV get-together? I think Glib's going to hold you to your offer to host...
Actually, the legs are just stuck under the platform. Not even attached. They're just there for a trial run. I will probably put another bucket under that end.
Considering a guard. Maybe after I lose a few fingers or other dangling appendages.