I tried something to make putting the pack on by myself doable. Still hard because of how tge shoulder armor restricts movement, but i was able toput the jetpack on myself late last night, armored up.
I put some thin really strong magnets on the inside of the top hooks for the jetpack, the ones the straps coming from over your shoulders hook on to. On the underside (inside) of the top of the hook I stuck a thin earth magnet with a lil hot glue.
Now I hold the jetpack behind my back, up, by the base of the rocket (DVH’s jetpack is VERY LIGHT). Then i just reach behind me with my other hand, get the strap nearby the hook and SNAP! The magnet catches the metal of the ring, pulls the strap up, and holds the ring and strap up. Do it with the other strap to the other side and the strap gets pulled up and snapped into place.. it’s awesome!