Free game, a room that size is familiar.
- Mini split should overcompensate so it runs lower draw, (18k or even 24,000 btu)
- 100pt active air dehumid will do the trick if it dumps outside of the room ongoing
- 20lb on the c02 tank running the average 800-1400ppm (varying) with the titan controller hooked up should get you 8-10 days. Better to have 2 or 3 of those for your beer brewing hobby instead of hauling a 50lb tank around. Good luck.