This may be hard to believe, but there was a time that "MMA" did not exist.  It was called, Vale Tudo or NHB (No Holds Barred).  I grew up in that era, and believe it or not, had many of the same problems you have.  There were no MMA schools because it did not exist.  There was one BJJ school in the area but the message of BJJ had just begun to ripple out.  People still thought Royce Gracie was a fluke.

Schools were still separate and teaching isolated arts.  We did what we could and that ended up looking almost identical to what you posted in your video.  We all got together and sparred, medium contact, no weight classes, NHB style.  Now I have the aches and pains every morning and evening to remember those days by and yet, it was a lot of fun.

What I can tell you is that there is a great opportunity in front of you.  Maybe you can be the point of the spear.  The first to pioneer MMA in your area.  It takes time and hard work, but it can be done.  I remember I used to fly up to Washington to visit my cousin who was training in BJJ.  I would take classes at his gym while I stayed there for a week.  I'd come back and for 6 months I'd work on the same move over and over.  Mount escape, mount escape, shrimping, mount escape.  That's all I knew, that's all I could work on.  But I got damn good at mount escaping with just 1 move.  This would continue for a year or two, working piece meal on one or two fundamentals for months on end.

You could probably do something similar.  Travel to the MMA gym across the country, learn a move or two then return and drill until you can save enough to do it again.  You won't learn a lot of moves really fast, but you'll get very very good at the few you do.  It's a great way to start.  It's how I started.

Later, gyms started poping up where you might find TKD and BJJ being taught in the same place.  I was lucky enought to find one where they taught BJJ but met a Purple Belt who was also an instructor in JKD, Kali and Muay Thai.  I began to study under him, and continue to study under him to this day.  But through him ended up meeting Sensei Paulson and also began studying CSW.  Later, my business partner and I would end up opening up our own gym and teaching CSW in our area.  We were the first MMA gym in our County.  Now there are "MMA Gyms" popping up on every street corner.  Most of them still adhere to the Wrestling Coach Guy + A Striking Teacher Guy + A Submission Instructor Guy = MMA Gym formula.  My point is, that if I can do it, so can you. But only if you have your health.  There is a smart way, and a not so smart way to do it.  I did the latter but am suggesting you do it the smart way and take it step by step with solid, and technical instruction.

Doing it that way you're going to learn ten times as fast, while preventing injury and not learning bad habits that you'll have to unlearn down the road.

Best of luck MARS and stay safe bro.