It has not been unusual, in the past, for VCA to back up a vendor dispute to reach a mutually agreed upon solution. In this case, you already have a judgement in your favor from the courts. The procedure, if the guilty party does not honor the judgement is to do a search for attachable assets, and file a lien upon them.
Also, sometimes a local police officer will help you to recover your losses by going with you to the place of business and helping to enforce the judgement.
In the case of government, they will sometimes even stand at the cash register and recover funds coming into the business to attach any funds available on a day to day basis until the judgement is fully resolved (believe this is an IRS procedure.
Not sure the club can help out grabbing the money, however maybe someone knows the vendor and could intercede on your behalf.
I know that the SoCal VCA was very helpful in resolving a dispute regarding a members Gen V Viper that was delivered with some issues. Seems like everyone resolved that with the help of the local club.
Would check with your local VCA Regional President to see if they can sort this out.
Unfortunately, at this time the VCA is highly sensitive about banning anyone, however your post of this forum may go a long way to see that others are aware of your situation.
I have seen situations like yours before. A vendor's reputation is one of their most valuable assets. Maybe this thread will encourage him to step up and make this right. It so, it would be most appropriate to announce that this dispute has been resolved to the satisfaction of all parties, and our members can feel more comfortable continuing to do business where they see fit.
It would also be helpful if the vendor in question would post his side of the story so we could see why he has done to resolve the dispute.
This is not all that unusual for a person to obtain a judgement and find it difficult to have it enforced. Not fair or right, but a reality