Hey PAC,
Not a Hunter but in the middle of resolving the install issues of the EV100. My thinking is to address the wiring strategy. The ACU can go anywhere you can route the SEATALK wiring. The EV sensor (looks like starship enterprise) needs to be out of the way. Within the length of the wiring. Correctly oriented fore and aft, and level. Not near electrical (think fuse/circuit breaker box), large metal (think engine), or your compass (it will affect the magnetic compass). Then you need to figure out how to fit wheel motor/routing wires to ACU. And finally where to locate the P70 controller. Under your dodger, at the helm, somewhere you have access to change the direction enjoy sitting and sailing. Lots of choices. No easy answers.