Gear recs - PCSL newbie

I ran a USPSA practice stage with my CZ Scorpion last weekend and enjoyed it, so I want to give PCSL a shot. What do you guys do with extra mags? I’ve found a couple belt mounted pouches that will fit the mags, but they’re like $70 a pop and I don’t have that kind of budget, unfortunately. I’d like to run them off of my CRspeed belt if possible.

Bonus points if I can get a chamber flag from the same spot as the pouches to save on shipping costs.

I’m interested in PCSL instead of USPSA PCC because it’s a braced pistol and I don’t want to replace the barrel or sbr it.