I don't know how beneficial a 4l80e in a square is. unlike the th350 and th400, the 4l80e uses electronics to control it hence the e in 4l80e. but if you are gonna do it I would go for 4x4 version and 98+ for the year due to the wiring harness parts are still produced and easy to find.
Optima for 1
for 2 umm Optima
now if you are just looking for a cheap battery they make never starts for a reason just go to your local meth house I mean Walmart.