Update:
I'm trying to paint the entire outside of the truck and chassis/underside in 3 days in my back yard. I took today(Monday) off to bondo/sand/mask and paint the DTM charcoal metallic color. I removed the bed and pressure washed/painted the chassis/underside Saturday and yesterday. Here's what I have so far and will take a few pics with the color on this evening. Wish me luck!
EDIT...I had to take Tuesday off as well but I finally got it painted. If I could go back in time I would've spent an entire day just doing bondo/sanding. I'll never paint another vehicle myself again. I found many spots that needed attention prior to base spraying. I should've primed 1st to reveal all the imperfections in my bodywork. Oh well, its fine for me and my backyard restoration project.