Not the same thing, but I resprayed my old EG's dash before lol... I used vinyl spray and made the dash + door trims black. Now the door trims I took out, but with the dash I just masked off everything really well and sprayed it. Just spent half my life masking stuff though LOL
I think you should at least take out the lower trims that cover bits of your carpet as a minimum. Shouldn't take you long to mask everything in this case though so yeh... Taking the carpet out doesn't take very long though...