<<I think the solution to this blind spot will be another taxiway to turn on to the active about 200' up from the current run up area>>
Looked at the video and I'm kinda surprised at the treeline being that close. Obviously a displaced threshold, but....
Starting just a few years ago, airports in Alabama were required to own or permanently control all the land area under their Runway Protection Zones. Starting at the runway threshold, the usual layout is a 200 ft runway safety area (flat, ground level) followed by an RPZ (fan shaped, sloped floor). A typical RPZ for a runway like yours is 1200-1400 feet long and about 450 ft wide at the outer end. In other words, you gotta own 1400-1600 feet out from the threshold, 450 feet wide.
Best I know, the "own or control" rule was promulgated at the state level based on FAA standards. It stated a deadline for compliance. Non-compliance meant displacing the thresholds (obviously impractical if you only have 3000 feet of runway) or failing the next airport inspection for re-licensing. Long story made short; we had a few city fathers who wanted to turn the airport into an industrial park and they buried the notice from the state aeronautics department. When discovered, it took well over a year to turn the political tide and get the land purchased, even though (by sheer luck) the land at both ends was for sale. It was tough sledding all the way.
A quick look at AirNav says you're operating 52F with a 9-1 "NSTD APPROACH SLOPE". Prior to the above decree from aeronautics, a whole lot of airports here were operating with similar exceptions from standard. In a later meeting, the aeronautics director told us there would be no more exceptions; somebody somewhere had sued a state agency director personally for an exception granted by his department. BTW, this was when they recommending closing our other runway (grass) due to trees, and it was closed until we got them cut.
Point is, you're obviously operating with an exception, and the winds can change in government. If I had 600+ pilots based and the serious potential to take a major hit from the authorities, I'd be lobbying for land purchase, not a re-located runup apron.
