Now that I'm finishing up an "SPR" build I'm realizing the problem it's solving may not be a problem. The RISR is Larue's Reciprocating Inline Stock Riser.
I'm not well versed in optics and am wondering how big of an objective lens would warrant it's use. Then any sort of back up sights become...
I was up there a couple years ago and just wanted to point out that the road in is long and VERY rough. A small car could gash an oil pan pretty easy.
As far as I remember, the permits is only for vehicles. I'm pretty sure you could bike in no problem.