Have you restored a vintage radio or two first? That is always a good start.
I wouldn't bother trying to power up the set before you at least replaced the electrolytic capacitors, you could damage expensive parts. Testing the CRT as well as the other tubes first is also a good idea. Clean up the interior is best done before you start the re-cap. When you pull the CRT socket off the tube be extra careful, if there is a bakelite tube base on the CRT it can come loose. It is a good idea to pry the base and the socket apart with a small screwdriver the first time at least, age can make the two stick together. Speaking of safety, be very careful with the neck of the CRT, the glass is the thinnest there, about as thick as a wine glass. The difference of air pressure due to the vacuum is almost 15 lbs per square inch. That means an area 8 inch square has a total pressure of about half a ton on it.
This article by Phil Nelson (a member here) about a RCA set that has a similar cabinet and chassis construction.
https://www.antiqueradio.org/RCA_14-...Television.htm