I know it's been a while, but I finally got some time to finish the repair on the 782D dash I have. I ended up using skim coats of JB weld, letting it harden for a good couple of days then hitting it with another coat and repeating the process until the worn spots were filled. I used one of those spreaders you see on TV commercials for silicone seal, and has multiple radius's (radii ?). The various radius's help to blend in at the flange that goes all the way around the dash where it meets the hood. I then used an orbital sander with 220 grit to take down the high spots gradually moving to finer paper. I finished it off with several coats of Dupli-Color semi-gloss black # DA1603 . Where holes were worn through the dash, i simply used scotch tape as a temporary backing to place the JB Weld on until the first coat was dry. I then removed the tape and built it up to match the surrounding area. Let me know what you think and how it looks to you.
IMG_3930n.jpg
IMG_3931n.jpg
IMG_3932n.jpg