The stated weight on that boat is a bit off from what it should be. With my dad: 225, me: 150, motor: 50, TM, battery, fuel tank: 100, fishing gear etc, we never had any problems, or felt as if the boat was going to have problems, even in 2 foot breakers and swells.
I had toyed with that exact same layout were I going to keep it. 2 minor issues. First of all, unless you have a powerdrive, or MG wireless series motors (which are worthless in my opinion) you need to have support under the head of the trolling motor when folded. The standard cable steer motors have a lot of weight at the head, and when folded, this weight is supposed to rest on the little foot on the back, and transfer the weight to the deck. But, with your design, the little foot isn't touching anything, and when I had it clamped on, it felt like it was going to rip the bow off. Basically, you would need something for that little rubber foot to rest on, and transfer the weight down to the seat.
Second of all, with the deck in that position, the cable on many cable steer TMs isn't quite long enough to reach the lower deck. Routed either under the front seat, it wouldn't reach the head when folded, and over the seat, I think it barely wouldn't reach the deck. I believe the difference was that my deck woulda been 4 inches higher than the bow seat, and it just barely wouldn't work, so if you kept as low as the bow seat, you would probably be just barely able to squeak by. These motors seemed to be designed to be on bass boats, with raised decks, so the length wouldn't be a problem.
Also, don't expect to stand on that raised bow deck. Or, if you do, be prepared to swim.