We wound up going with a gallon of Interlux Brightside blue white at a cost of $115, splitting the can hand having half tinted turquoise. The upper half of the trailer is white and from the belly band down is turquoise. I also painted the hatch doors to match (the lower ones turquoise and the uppers white) I used a smaller white foam roller and my wife followed with a paint brush. It came out looking great!
I also took apart every window, stripped the aluminum of all the paint (wire wheel works great although it's tough on the arm muscles) and re sealed them. I got double sided window tape from a window repair shop and used Vulkem 116 on the outside. The only drag is the Vulkem suggests a 21 day dry time.