You had me at wrist-mounted flamethrowers, but I can't really complete my Boba Fett build without a jetpack. AFAIK, there isn't a real one in the vanilla game (just mechanical wings, gyrocopter backpack is close, or anti-grav boots). But Boba Fett's jetpack doesn't provide real flight, just short range stuff. So if you do requests, a jetpack for the back slot that increases jump and charge range AND partially negates fall damage would be legit (so jumping down shafts becomes more of a thing).

Balance can be achieved by having it randomly shove the player in some direction when it breaks (which would be straight out the movies, how else did Boba Fett end up in the Sarlaac?). Having the missile on top might be too unbalanced (or have two versions, one that also has a missile and one that doesn't; this is 1% drops after all). I would expect it to also use oil like the gyrocopter backpack, maybe have it increase carry by 1% to offset additional weight of oil (since it would need to hold like 50 drams max).

Food for thought!

Edit: I now realize there is already a jetpack hidden somewhere in the game, but I guess this version would just end up being a lower budget version...