Take wood filler and fill in anywhere you need to - I had to fill in the edge of the circle because the drill shredded the edge at one point. After that dries, sand, sand, sand until you are sick of sanding and then sand some more.
The smoother the surface the better. You can also sand in details, if desired.
Once you are happy with your basic shapes and sanding levels, spray a base coat or two of the silver metallic spray paint. Coat all the wood. Let dry.
Check the humidity outside before attempting the next part. No, really.
I tried to use the spray plasti dip but gave up on that idea really quickly as I could not get the dip to not pit. Using a plastic container, I used the pourable plasti dip and (I kid you not, 11 tries later) I managed to get a good dip on the piece. Basically, get your ISAC coated in a nice, even coat of plasti dip (it will not be perfectly smooth no matter what you do so just run with what looks good). If you hate the dip, just peel, sand, paint, and redip.
Dip both pieces of the dowel rod (or spray paint them black).
After everything has cured, not dried, cured, you can thread the rod back into the ISAC and rebuild the antenna. To attach your vacuum belt, cut the loop so you have one long piece and attach it to the long dowel using electric tape and your zip tie (make sure the clasp is underneath the antenna. If there is writing on the belt, sharpie it black.
Take your aluminum tape and add accents - I taped the sharp tip and the junction of the two rods to make it look like it was a solid piece of metal.
If desired, scrape through some of the plasti dip to show the metallic spray paint underneath. Add any other detail work you see fit.
