Hey, Ive also got a Topward 4000 and I kind of like it because of the analog meters. That I have this does reinforce my claim to having an outbuilding full of 'treasures'.
Same model 4303, too. Those meters are pretty, indeed. Looks like your supply has not been abused. Mine isn't anyway near "Israeli Ebay electronics seller" territory, but it needs some TLC.
Oh, hey, I just figured out what the "Tracking" mode is. Hook both channels together and it goes 0-60V based off of the controls on the master channel. That's pretty cool. I'm a noob.