Well, I just turned pea green with envy.
I love Whittles and you're going to have sooooooo much fun!
You quilt sounds like a good one to get started with and I hope you have a great time working on it.
Whittles carries a HUGE selection of Civil War Era repros - because they are usually somewhat subdued in color, and many prints read almost like a solid from a little distance, I think they're great for mens' quilts. And there are sooooo many prints in each color - you could go with an indigo & tan/cream color scheme and use dozens of different prints. You might find everything you need just in the fat quarters.
Have a great time and show us what you bought!