The loose rusty stuff on the dashtop will be removed with a flapwheel and steel wool, followed by a coat or two of red oxide primer and then top coats of satin black. I never really liked coloured dash tops as they reflect glare into the screen.
The rest of the front will be getting some flapwheel action on the bits of remaining surface rust, zinc rich primer and then some pale magnolia rattlecan paint that is a good match for the original interior paint. I'll be doing the inside of the front panel in the same stuff, with just weld thru primer on all the surfaces that are going to get welded. The rattlecan paint was originally intended for household radiators and is meant to be pretty hardwearing, so it will be interesting to see how it holds out.