Triple vs tandem trap door size form all materials

I'm debating to either buy a triple axel timpte 50' x 96" x 78" with commodity hoppers or a tandem cornhusker 42' x 96" x 78" with 30" x 40" trap doors. My question is if the cornhusker would be a good trailer to haul feed ingredients with traps only being 40" it does have dual vibrators on each hopper I do a lot of local intrastate work witch a triple is nice to have but I want the flexibility of a tandem to be able to go farther out without having to worry about not running the interstate like in Iowa that is prohibited. Any good input would be greatly appreciated. Thanks.