Thanks all.
Paul, I am using the WS Realistic Water as well. I had some on hand and just stayed on that path. The river bottom color is another matter. First layer is a tan house latex that I had--wanted to seal the river bottom to help prevent leaks. Then I just mixed up raw umber, with a little black and forest green paints for the bottom. I mix paint like I cook, a little of this and a little of that and no measuring. Perhaps not the best way but it's the Magoo way. ;-)
JDEVLEERJR, I am following your build as well. Looks like you planned yours much better than I as mine is a retrofit.