You are looking at $4k for the headers (and yes I would do the modular Cargraphics). The ceramic coating was $400 or so. The third radiator was $1500. Racing/Track pads are $600. I would add the Tarett caliper stud kit for the brake calipers (makes changing pads much easier) $200 and SRF brake fluid $75.My budget is 6k. If you don't mind me asking roughly how much did all that cost you? Since this is also my daily, would doing all this make it a pain in the *** to drive on normal roads (scraping and whatnot)? Also I Was actually planning on getting those apex rims, the protune & cobb access port regardless of whatever else I buy.
I have no idea what the labor would run for all of this because I did it all myself and it was pretty straight forward - makes for a good off season project.
At that point you have spent your budget. If you have PASM then the next mod I would do after raising some more cash would be the DSC controller. If you do not have PASM, you could go with the x73 suspension package for $1500 and again install it yourself - I did and while more time and effort than the above mods, easily doable by a moderately skilled home mechanic.