Nice set. It will be helpful to see how you un-solder the capacitors. Otherwise RCA's are such a treat to work on.
I have a 1956 and a 1959 with the same obstacle. Those channel windows were so cool and it seems only RCA had them.
What is that funky white cheesy-smelling stuff on the knobs? I get that sometimes and the only cure is to toss em in the dishwasher.
In the era of mahogany or limed oak, is that finish a dark blonde with highlights?