Those definitely look like scuba or firefighter scba air cylinders! Wonder where we can get some that are not as heavy... Maybe someone can vac form them
I get that but, by this time they should have all been issued not only ANH armor but ESB and then RoTJ armor. Why would any troopers in this timeline still have RO armor? It would be like them still rocking clone armor a few years after the rise of the Empire
1. Yes, drop boxes are grey not sure what shade though
2. Trim (along with the whole kit) needs to be in regs with a ROTJ build added with the MP40 pouch and Pouldron. So yes, trim on the front painted red.