A couple other choices..
The VANS electric flap system option locates the actuator under the floor, and has a bellcrank that actuates a re-designed weldment with no manual handle attachment, and an additional attachment for the actuator pushrod linkage. Its a nice system that works well, however, I have seen several builder designed systems that locate the actuator vertically along the fuselage bulkhead below the roll bar, and utilize the existing manual weldment with some slight modification. Search around, and you will find pictures of this type set-up. I used the factory under floor set-up, which was easy to install during the build, and I bought it all with the fuselage kit.
8A7 / Advance NC