You do realize it's a simple fix if it is mounted where you want it, to reduce the width?
Just take the ends off, cut the tube ( measure twice, cut once ) with a hack saw. Then re install the ends on the doors!
I built my own boat, but used Four rivers doors and a Momarsh seat, just my preference on each.
I adjusted my doors to fit me and my heights, were I like to sit up, etc.
Nothing is just a plug an play, should make them fit you .
It's not just a duck boat, it is a tatical platform for opportunity- weedwacker 101
Preserve game and hunt with a trained dog- NAVHDA.