[Arran]

I would make one suggestion before you start working on a tube radio, or TV, with a steel chassis, pick up a larger iron of between 100 to 200 watts, or something in-between. I see people in videos try to make connections to a chassis, or other large metal part, using a pencil iron from soldering station, usually making a pigtail with the old lead in some way, and it makes me cringe. It's not so much the temperature as the mass of the iron's tip. If you look around at thrift stores, flea markets, and garage sales you can usually find a bigger iron, if you would like a new one a place that sells stained glass tools is good, and they have good soldering iron stands to go with them.
Since you are in Montreal there are a few electronic parts liquidators in the area, such as Addison and Maddison, if they are still in business, if not Digikey and Mouser sell a lot of what you need. WJOE Radio is good for paper cap replacements, and their electrolytics are not bad either, though they don't have as much for resistors as Digikey, and Mouser.
Regards
Arran