CUSTOM iNTERIOR WORK

Hey im wondering how i could do the black and red leather interior in my stang i aready have the black also is their a way to get custom stitched words or logo's on the headrest. I want it to match the outside of my car when i get my red stripe. Do I call an embroidery shop or what and ballpark on the price. Also anybody know how to get custom lettering to put on the back so instead of shelby i could have it say diablo the name of my car. I saw a kid who had this lettering stupidly it said cash money but i want to know how he did it.