I'm going to declare this one done!
I thought I was done a couple days ago but then I noticed a little vertical shrinkage and flagging at the top of the screen, increasing the AC voltage stopped all this.
I had noticed the B+ was about 20 volts low because the Selenium Rectifiers were getting tired, I was going to let it slide until these problems popped up.
With some help from the people over at the A.R.F. I ripped them out and replaced them with Diodes, after doing that I had to increase the size of the resistor feeding them because the B+ was 20 volts too high, then I had to install some snubber diodes across the caps to stop the hum bars caused by the diodes, it was a bit of work but after getting it all worked out the set looks great!
According the the 1956 Sears catalog, this was Sears Best portable, it's a cheap, series string set with a fairly low tube count but it works as well or better as some of the Deluxe RCA Portables I've worked on, and it's a heck of a lot easier to work on!