what mag pouches work the best for g36

Just wanting to know if other size mag pouches will work for g36 mags. Or do I need to use g36 pouches planning on a battle belt with good h-harness with some molle on harness and belt any good ideals on a light load out dont want to use plate carrier I am a big guy and need all the openness I can get its summer in Florida. Going to run side arm, would like to attach to battle belt and mag pouches for primary, need to hold 3 hi cap and 2 mid caps. My pistol mags can go on harness along with radio ,dump on left side rear and bladder on back all tied into the belt dont really like to drop holster down to leg also small pouch for jamming rod etc etc etc. New to airsoft what is the best but cheapest place to buy Battle belt dont want it to sag and fold with full mags and pistol. Thank you