Got a couple of hrs in before work:
The copper clamps are just temporary while I make another trip to the Depot.
Even with this config, I can still lift the front end almost a foot off the ground before the intake starts to drag. Plenty of clearance!
I screwed the shelf brackets down to a junk 2 X 4 so they wouldn't wobble while I cut them.
Might do a second coat.
Not gonna be able to get bcak to the lab for a few days. Will post more when I do.