Re: outboard weight
I've owned a 1/2 doz jon's and over a dozen small outboards. I currently own a 1232 Sea Nymph which is sized like yours but a bit lighter and rated for a 3 hp. I tried a 6 on it last year and nearly flipped it on a short white knuckled ride!. IT was out of the water as much as in. Point being , before you settle on a 6, you might borrow a 4 or 5. FWIW, I had a 5 hp evinrude 4 stroke (60#) and didn't like it. The extra weight made the boat squat badly.
IMHO, a boat of that size is better served with a light 4-5 hp 2 stroke. These run 33-44# , often have self contained tanks and really scoot along.
Lastly, if your boat is rated @ 440#, I assume your only using it solo? ( You+60# motor+50# battery,+ gear, trolling motor etc don't give you much left for a buddy.