I priced out the box you'll need, with a double baffle and (2) 12"x12"plexi windows - about $469. Seems like a lot more money and you could use it to insert 2" round stock braces front to back, etc. Those are sorta for show, no?
Not a fan of inserting windows and the like that just increase the cost and weaken the structure. Personal preference. It's only money, right?
If you do go for the elite, I would skip the plexi ioption, the box is a stiffer box and would be better, probably worth the extra coin.