Well, a followup after a week or so...

The family has used the pool 3 or 4 times... I started using the solar cover, BIG difference in keeping heat in...

I also have found that chlorine usage isn't great at all... I have a 35ppm or so CYA level and I usually end up adding maybe a half gallon of 12.5% liquid chlorine every 2-3 days... And that is with the pool temp at 83-87 degrees or so...

Also I ended up burying the second return line and adding unions to the line since it made adding the pavers around the pool easier... Look much better like that anyways...

I have not heard back from the liner people (surprise), so I will give them a call tomorrow...

Overall, outside of the liner issue, I am pretty happy with how it turned out... The foam bottom is perfect (everyone raves about it) and the foam walls are a nice touch as well. The Morada 6 RTR pool is very nice looking fully assembled and the upper resin rails have a great design that keeps water from being splashed out of the pool from the inside. With my paver ring design it is perfect as there is no way the kids are going to get water on the exposed 8" area just beyond the pool. All water splashed out will hit the pavers or beyond, so I have no concerns with too much water getting into the substrate under the pool. Actually, when I fill that space with pink/black rocks (like the rest of the landscaping has) I might just go with a finer stone mounded higher before the bigger stone to even further increase the "watershed" from that gap.

Hmm, I might even be able to figure out some sort of angled "splash guard" that would divert all the water to the pavers, and just put a smaller layer of larger stone on top of there... That way there would be minimal water infiltration.