I have my doubt that one exists. There may be jow ga solutions that can handle bjj white or blue belts, but that would be the extent of it.Well I was originally told that there were some Solid Jow Ga solutions but when I asked I just got everything but Jow Ga. If there is a Jow Ga solution or even just a Kung Fu solution, then I want to use that. If none exists, then I will need to either invent one (ain't happening) or to use a solution from another system (BJJ).
I may just go straight to the head of the Jow Ga Organization to see if he has or knows someone who has the knowledge that I'm looking for. He might be willing to share that information or point me to someone who has that information.
This is a martial art that ignores (mostly) every other aspect of martial arts beyond the ground game. And focuses purely on figuring out how to make the ground game as good as possible, which is an aspect of martial art that is incredibly nuanced/niche. And there's no reason for another art to focus on it, unless they're involved in the ground game to begin with. Expecting it to have predicted the over-development of a ground game that 99.99% of martial artists would never have predicted would be needed, and that remaining .01% would just focus on how to avoid being taken down, is a fools errand.
That said, regardless of striking, grappling, weapons or ground grappling, martial arts principles stay the same. Learning BJJ and finding where it the principles jow ga matches is probably your best bet. Then either incorporate them into jow ga or (which I would recommend just based on your statements of the politics involved of jow ga) create a new version that includes this, you can have jow ga fight against anyone including bjj specialists.