Here is a good article on recapping.
http://www.antiqueradio.org/recap.htm
I've been doing recap work for 10 years now at least, and if you placed that chassis, a hot soldering iron, solder, and new caps suitable to replace the originals infront of me I could probably have that thing recapped inside of 5 minutes. Three tube audio chassis are nothing to recap. There are probably only 2-3 filter caps (which you have to mind the polarity on), and 2-7 paper caps. I could probably teach a monkey to do a chassis like that.