I've done just about everything on my list except two:
For practicality, I would like to get a bed-slide and for looks I'd like a chrome brush guard.
Other than that I think I'm good.
I did my sail panel LEDs, 6 on high, all 4 brake light mod, rear seat head rest, LOF&I, Added steering wheel controls, upgraded the audio and replaced the speakers, Spectre CAI and a Cat back exhaust with a Flowmaster 50.
If I had the chance to do any of it over, I would have gone dual exhaust, but at the time funds were limited.
Maintenance wise, I've replaced the plugs with AC Delco Iridium, with MSD 8.5MM wires, replaced all fluids and Trans filter (did not flush the system, but did replace the fluid three times AFTER I dropped the pan and replaced the filter). I also cleaned the MAF sensor and throttle body when I did the CAI.
Next up will be new tires, as the current ones are at about 40%. Most likely do brakes at the same time and if $$ permits, upgrade to the GMT900 disks and calipers. Otherwise some new pads and another item for the wish list.