I went through my patterns and decided to modify this one:
New Look 6808
I'll take the lower neckline without sleeves and use a size with very little ease, if any at all since this is a stretchy knit. Then I just have to extend the waistline down to a nice hemline. Sounds easy enough. I'll let you know if it goes that easy in real life.
I will be pairing this with a cotton voile cowl neck top that I am planning.