Very specific costume request: Crab Spider backpack w/ jetpack

[biostem]

So I pretty much take flight on all my characters.  If they are of a natural or tech origin, I either go with a jetpack, rocket boots, or one of the tech wing options.  That being said, my Crab Spiders are only able to take rocket boots or I must handwave it away as a flight belt or something.   I was wondering if it'd be possible to take a set of the rocket exhaust nozzles from one of the rocket packs or tech wings and kind of graft them to the bottom of the crab spider backpack.  Alternatively, I'd love some other rocket boot options - maybe some that use the effect the robot minions get while under the effect of group flight.  Thanks for reading!