Maybe the Headrush FRFR? It seems to be liked for a budget speaker.
This could go either way. Are you near any big box music stores where you can audition some full range powered PA cabinets with the rig?
If your gigs are such that the bass will be reinforced in the PA system, then that's your best bet for getting this done with a powered full range cabinet on a light budget. Then, just set up the speaker such that you can HEAR it well (elevated, on tripod, monitor wedge position, etc.). If you have no PA reinforcement for the bass, then that might complicate things and lean you toward a (second hand) traditional bass combo amp IF you're playing loud-ish rock and IF you're playing larger rooms.
If the idea is that you just need to get through these gigs, then sure, just about anything
could work. If you and your bandmates want to hear/feel bass sounds that fill the stage and room via a FRFR speaker, then you may need to loosen the purse strings a bit.
So much of this is context and preference sensitive, totally subjective. Personally, I can do some gigs using a single FRFR Atomic CLR, while others require 2 CLRs to get the job done. But my gigs, tastes, and "happy place" is most likely different from yours.