Just bought a new boat

[chumbucket]

28" wide is fine. You'll be surprised at how stable it is once you get used to it and build confidence.
Take your time on the rigging. Use it for a while and decide what will work best for you. One Scotty mount in front is fine. You get too much gear on there and it becomes a Chinese fire drill in short order when you get a decent fish on.
I used to go out loaded for bear, but soon learned less is more. Two rods and species specific tackle, a couple other goodies and you're good to go.