I get what you’re wanting to try & I’m kinda after a similar thing.
If I could start from scratch I’d be tempted with 2 x BF Two10’s, bottom one for ‘deep’ & top for ‘drive’, switch to 4 Ohm each to maximize poweramp or switch to 12 Ohm & run parallel to any backup amp ... however, I’m gonna use the two cabs I already have & love (except the weight) which are Bagend 212 & 112 (drive on top of deep), except I don’t have the GED2112 lol (yet), I do have two power amps waiting tho ... I believe you used to run a RBI ? How does it compare to the GED2112 ?