1st I would have an auto bodyshop painter look at it. I believe that metal is actually aluminum and it would be tricky to get paint to adhere to that surface.
The left most panel (over the gauges) just pulls off
The center section is screwed on and will not come off until the airbag is removed lst. The center section removal may also require removing console and radio cover (but those are easy after removing screws)
The right most panel (RH vent) comes off by pulling, while pushing from behind...maybe airbag comes out lst...can't recall.
So the airbag is the difficult one.
Should look at the service manual for that....for depowering
Depowering is in the General procedures section of the SRS system in the shop manual...should be online link for that in this forum.
Must depower SRS system and airbag is mounted from behind the dash. 1st have to lower glove box all the way or remove it.
Disconnect electrical connector to rh air bag
remove two airbag module bolts (behind glove box)
release deployment door clips 12 total...six upper, six lower, two each side.
push from behind dash to remove air bag module...do not pull from front.