This evening's work with my custom flap-switch console was very satisfying. I cut out and fitted a thin cardboard template in the cockpit, fitted it with the actual flap switch I'll be using (to check clearance and ergonomic issues), tweaked everything until it all fit well, then transfered the design to .040 aluminum, cut it out, bent it, and began fabricating some angles to attach it. My plan is to attach it with 4 screws and platenuts through two angles mounted on the top of the throttle quadrant below it. The new console is very sturdy, and it doesn't seem like it'll need any additional attach points.
This sloped console looks great, in my opinion. The flap switch seems like it will be out of the way, yet easy to reach. I'm very happy with the results of this mini-project!