Has *anyone* come up with a better mount for the 2017+ Cascadia?

Current company finally broke out the dynamite and prybar and forced me out of the Volvo I was in. I'm back in a shaker, a 2021.

And the current "new cascadia" offerings just don't cut it. There's the new Wilson mount, which is aluminum, and not strong enough for my "franken-tenna" or really even my 7' Firestik. (I literally had the old Wilson mount for the legacy Cascadia break with a the 7' Firestik on it.)

There's the ProComm mount, which may hold the Firestik, but probably won't handle the franken-tenna. Plus, it keeps the antenna too close to the door.

Then, the notorious single post bird perch, which can strip out the threads in the driver's door with a large/heavy antenna on, or on the passenger side, unscrew itself.

Yeah, no. I need basically an updated version of the one I had on the legacy Cascadias I drove back in the day. Which is to say, basically a stainless steel version of the Wilson mount. Has anybody found such a thing?

 

That's the ProComm. Half decent mount but not quite up to my standards.

I suppose I'm going to have to get something custom made.

 

It's an oil coil on 54" of SS 3/8" shaft.

It's 7.5 feet overall including whip, and heavy as you know what.