Pull all the trim and have the shop that did the paint match them too. The door grabs, the door handle cups, surround for the stereo, shifter bezel, cluster bezel etc... If you are feeling really froggy you could get an upholsterer to redo the seats with pink microfiber/alacantra inserts.
TBTH I'd just pull all the easy to remove trim pieces and paint them pink and then go for a really clean interior as in replace anything that is broken.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.