I finished what the StarBright media couldn't yesterday with my tried and true electric drill and wire wheel.......
I'll treat the uppers and lowers with Ospho today since I had good results on my floorboards prior to painting with POR 15.
If you're not familiar with Ospho, I'd check it out. I've used the product over the last 30+ years and have been very impressed.
www.ospho.com
I ordered 3 aerosol cans of POR 15 Top Coat in Chassis Black yesterday so I should have the pieces painted Tuesday night if all goes well.