I purchase four of the holders that Bucky has at our local Dollar store, yes for a dollar each. they where in the nail polish department . So check out your dollar store if one is in your area.
I use Vallejo's Matt Varnish, they also have a Gloss and satin varnish if you need. You can mix the varnish with the color paint you need or you can brush or spray the varnish after painting the part.
I've been using Plastkote primer for years, The only thing that I don't like is their new spray cap asm. What I did was to remove the spray cap and replace it with the nozzle from a Tamiya spray can. Now it spray a nice fine even pattern.
Looks like Parts for a Model A ford . AMT kit or maybe Monogram . my guess is AMT. The 1st pic the parts are rear tail lamps. The 2nd pic is the front bumper and the motor meter for the Rad.