A lot of it could be solved just by adding a "mount" that is essentially permanent Rocket Boost (and possibly a permanent Force Speed for others) as many chestpieces have perfectly fine jet packs.
As for your suggestion: It'd be nice, but in general it'd be nice with the ability to edit outfits in more detail than just the 6-7 armor slots we currently have. This could for example be Hood toggle (and how can NOONE have mentioned this before?? ), gun holsters, robe length etc.