Shame a magazine like Kit Car is no longer around with at least capability of publishing Letters to the Editor. Maybe RCN (ReINCARnation) ezine would accept a damming letter warning people of his business practices. Small claims courts usually have like $5k limits. Seems funny but maybe Judge Judy (or one of the others) would take it on? You'd at least get a video for your $. If there are 20 people in queue and each had $10k+ at stake - a lawyer might take a group suit on for $1k or 20K total plus 1/3 of any settlement. Maybe a Go Fund Me page with car enthusiast donating - it would indeed get publicity and a couple might get $ before he is forced into bankruptcy. The key is to put him out of business on preying on others.
CMC was closed down by FL State Attorney General's Office in 1994 (but took years more). They were a bigger company ($20m in sales and $1m in inventory). I recall over 400 complaints (article says hundreds) of incomplete cars delivered. Believe all got at least majority of parts for building a car. I'll research records on CMC. CMC was shut down and FL force him to create a new company to get missing parts to all - called Auto Resolutions Inc/LTD (?)
This has some good source note-