Thank you everybody for commenting!

While the two panels were curing, I dismantled and prepped the chassis for paint.
This is the front spring release assembly for the bezel.
The 5.25 bay plates are very easy to remove with screw driver, love the extruded aluminum!
The Motherboard try is held on with pop-rivets, I use a 1/8" drill bit to bore them out.
I couldn't access sandblasting equip to blast inside the extruded aluminum fins (top panel), so I folded 400 grit sandpaper around a micro flat head screw driver.
I used the Red Scotch-Brite pad to scuff the rest of the top panel before applying self etching primer
Black self-etching primer coat is used instead of Gray, to darken the Silver aluminum top color coat.
This time I applied the paint while Brad enjoyed his Summer Shandy on the deck :D