Neat design, I look forward to seeing it come together. Just a thought: if you think you might want to do a whole hog, 2 doors can be a problem. I built my rig with a single 50" door on a 72 inch tank; no counter weights (yet) and it's not to heavy. I've done +50# whole hogs and think i can fit up to 80# in mine. Just something to consider.
26.75 Weber OTG & SJ/WSM Mini
Home built trailer mounted 24"x72" hybrid/reverse flow stick burner, 18"x44" grill w/CI grates, upright SS gas oven/smoker, iGrill & a bunch of other cooking toys.
Home built 48" fire pit with a 30"x30" Santa Maria style grill.