FWIW: that rig wouldn't fly in FLA, OC is not legal hereWelcome gclem. Just Sample of information I got on Google that may help you. There was a person on here a while back in Arizona who used a wheelchair and carried with a shoulder holster. Hope you find what you are looking for.
Brownells & Scotworks'LLC Team up to offer the CQC Holster Wheelchair Adapter. Find out more here:
http://www.brownells.com/.aspx/pid=...LCHAIR-ADAPTER
FWIW: that rig wouldn't fly in FLA, OC is not legal here