Ok... the stars are aligning. My new shifters, cables, 11-28 cassette, and clamp-on FD are to be delivered to Performance Bike at Perring Plaza Shopping Center today!

I'm going to be under $2500 when it's done. I don't think that's too bad considering I'd have spent nearly $4000 for a pre-built one. And, I would have had to wait a lot longer to get it. Stoked!