I'm working on getting my montero road worthy after putting in a donor motor last fall. now here's my question.

after realizing my gauge contact broke off inside the tank and the small screws will never come off under the truck I decided to pull the tank and give it a go over. turns out it was worse off than I thought. few pin holes coming through too. no problem, I'm gonna POR15 the outside and put a liner kit inside it. what I'm confused about is how necessary are the maze of little separator tanks on the top. all of the metal line up there had to be cut off (rust).
since it's not a pressurized tank could I not maybe put one line to the front charcoal vent and plug the others?? any thoughts?

Love the raider, hate the raider, love the raider,.....
new: '88 Montero, auto, LSD 2.6L
'87 Raider, 2.6L(#2), 5spd, Dual batt., Xterra roofrack......soon off to the wreckers