I noticed an error in Van's kit. The aileron trim servo kit comes with a jig you're supposed to use to locate and drill the mounting holes for the servo and the tube guide. This jig, as it turns out, is about 1/4" off from my pre-existing QB fuselage holes, so it appears that this is one of those times that I'll have to press ahead and work with what I actually have, rather than what the plans say I'm supposed to do.
I located and drilled the mounting holes for the trim servo tray and the tube guide, using the servo as a guide for the exact fore/aft placement of the mounting tray. I had to trim just a tiny bit from one side of the top of the mounting tray so it would clear a bulkhead intersection.
Next, I located and drilled the mounting holes for the autopilot roll servo. I elected to drill out two of the QB rivets and re-use these holes for the top two rivets on the bracket. I also discovered that the installation of the roll servo causes a conflict with a floorboard stiffener, so I trimmed off about 1/8" of the stiffener (See photo #3 below). I may have to trim some more later, during the installation of the servo actuator arm. [Superseded later by Garmin servos.]
Next, I deburred and re-primed all components, and painted the flap microswitch mount and striker plate.
The last thing I did today was remove the pre-installed gear leg covers, in preparation for installing the gear. Two of the #6 screws were so tight I had to use a "screw-out" bit and some PB penetrating oil on them. Take THAT, screws!