Welcome! And love the rig!
I'd recommend for the Honda OEM hitch and wiring harness! The curt one sits below the bumper and loses a lot of clearance. Honda isn't too expensive and fits very nice in the new valance they send!
The ATF cooler sucks really bad, the 9-speed is even harder to install over the older 6-speeds/etc. very tightly packed up in there. I assessed it who does essentially all of my own installs and talked to a Honda tech who does all the installs at the local dealership and ended up going with him doing it. He does like ~5 a day and still does not like doing them. I wish you luck if you decide to take on ha!
I'm a fan of window tint (protect interior, stay cool, look cool), the idlestopper to prevent auto stop feature, and maybe some mud flaps and LED lighting. Otherwise you don't really need to do anything if you don't want! I have a whole list of things on my new member post if you're interested in looking!
