Well I ended up going with Motorguide. I got the Xi5 with pinpoint gps. I like what I've read about their anchor and jog features which were the main reasons for wanting a gps equipped unit in the first place. Once I compared the prices of replacement parts, like remotes (in case one goes for a swim or a walk) I was sold. I may have gotten too much motor at 80lb thrust, but from my experiences, it makes sense to have it and not use it than to need it and it not have it. And if my boat one day suddenly grows, I'll be equipped.
I plan to mount the batteries under the port side bow seat, the admirals favorite perch. With her, two batteries and fuel on the port side and me on the starboard side, we should pretty much even out lol.