AGM battery.
Rain tires, u might not plan on driving in rain but without rain tires these can get pretty loose in the rear.
Gmax is a great choice for rear. Good price great grip and can get alot of miles on them. They do have softer sidewalls Wichita some ppl like for ride, but I run them on back and a stiffer sidewall rain tire on front.
I run 275/35r19