Box Blade sizing

Hello Friends,
I have an 08 3320 that I would like to buy a box blade for. I intend to use it for trail work in my woods up north. Not sure the best size to go with. Thinking a narrower blade (65 or 66) would be easier to move around the woods verse the 72. I believe my rear wheels are around 66". I have an old 60" at home from an old tractor but that seems too narrow, maybe I could give it a shot and save the cash.

I have several models I have been looking at:
Frontier BB2065, BB2072 Dealer has a used one and would deliver for free.
The Frontier is nice and hooks up to my imatch hitch but is more $$.

King Kutter BB-72-YK Best price at Farm and Fleet
I haven't seen the King Kutter to verify if it will match (website states fits quick hitches).

Everything Attachments 66" or 72" Extreme Compact Utility
I have purchased from Everything Attachments and they were good quality, only issue is that I would have to trailer it 300 miles up north.


What do you think about the box width?

Am I making things harder going with the narrower unit?


I appreciate any input you have.

Thanks
Matt