Tranny update: Install went well, and the transmission works great. RPMs dropped by 2-300 on the highway, gaining about 4.5 MPH at 2500 RPM.
Finally getting around to installing some smooth wheel covers. Used a 30"x36" sheet of white coroplast from the Home Depot and cut four 14" circles, with zip ties around each of the 8 spokes to secure them. I cut out a hole for valve stem access.
No tests yet, but we'll see how well they work! Planning on putting a pair on the rear as well, and trimming back the rear wheel skirts to make them flush with the body and not have to stick out to avoid rubbing the tire.