Dash decay

I am sure everyone has seen a truck dash like this. Searching for best opinion on how to proceed. I don't really want to replace the whole dash and am not scared of painting. I have been doing some research on the SEM brand of paints and wanted to see if anyone has experience fixing a chipping dash. My biggest question being, do I need to strip the whole dash or can I clean it, prep it and paint and have it look stock.
Sorry for crappy pic, and missing dash piece, putting in new stereo tomorrow.

