The blue one is sweet... I think it will look awesome with either of those colors, but that Evening Orchid would be slick. Can't wait to see what you do with it. The '65 is one of my favorite Impalas, so I will definitely be following along.
I built this one a couple years back with a candy type red paint job. Though it came out ok, I want to try my hands at it again. Hopefully it'll come out the way I see it in my mind this time.