If it's their hobby and they enjoy working with cars, then go for it. If intent is to make $, there are more profitable ventures. Just price the kit and then compare to a finished "slightly used" car. You can buy a completed running Speedster for about the same as building from a kit. Less Spyders out there - but that means probably less potential buyers. I'd think a small whiskey still or building Amish sheds would be more profitable.
DrClock (Alan) used to work on kit cars with youth at risk. Profit was probably secondary to keeping them out of trouble, teaching them skills and building their confidence. Could they combine their interest with that twist? Buy 5+ used Speedster kit cars and build in a big vacant warehouse. I could see local business support (donations) or even government funds for such an effort.