Painting inside the doors., What did you do? Options

[Olympic 914]

Considering getting my doors media blasted, probably soda blast. and was wondering how did any of you guys paint the inside of the doors?

can't really get a spray gun in there. I used some of the Eastwood inner frame coating inside the longs and the tunnel, but the inside of the doors will get water from rain and wash water running down into them. I think they will need something more substantial inside.

I guess I could just get in there with a paint brush and go to town

I have used Rust Bullet on the inner fenders and underside after sanding and sandblasting. this would probably work inside the doors also.

What have you used?

I have doors without the safety bars and there is a tar like coating inside, hopefully the media blast will remove it. it will be a PITA to scrape it out I think.

Also would you recommend putting something like dyna mat in there or spraying a coating like Rhino liner inside to cut down on noise and add protection ? Not a racer so weight isn't important.

I haven't taken them apart yet.

[Olympic 914]

Yuck

I was planning on using dynamat on my firewall too. I have used it before and the stuff I used was like tar with an aluminum facing, didn't think it would hold water.