Sheesh...just typed this all out and then lost it.

Dennis, thanks for the reply. What I think I should be able to do, but want to double/triple check before doing it:

1. Remove top railing (which looks to be just for looks).
2. Remove top plates in area that needs work.
3. Remove or at least lift a section of stabilizer rail
4. Lift the liner where it needs fixed, and instead of hanging it with the vbead, lay it over top of the wall and use the coping strip. I assume this is ok for the liner to be laid on the wall...I did opt for the 10 mil liner instead of the cheaper .5 mill (or whatever...got a thicker one at any rate).
5. Reinstall everything as it was.

I just want to make sure we're on the same page, as I'd hate to pull some stabilizer rail and have the side push out in a way that is unfixable...

And thanks again!