Zenith 25HC45 issue

[AndyMack]

Ok, a little history. I've owned this set since 1989, when it was found on the curb. Elderly owner said it no longer produced color. Took it home, fired it up and it worked perfectly. About 3 months later, I had to move. The set took a fairly rough ride in the back of a pickup for the short half-mile ride to my new place. Since that day, it's had issues. Intermittent reddish tint to the screen with diagonal pinstripes thru the screen, and whenever I touched the power switch, I always got a faint shock (like we northerners always get on a dry winter day). It was a daily watcher for a couple of years until it developed an arching issue. Basically just put it in storage. Well, it's back in my garage and I decided to fire it up and take a closer look at whats going on. The pictures will tell story. She's got a nasty, very audible arc from the transformer to the chassis. I tried to photgraph it, if you look close to the #5 pic, you can see it though a hole in the HV chassis.

My questions are: can these parts be sourced today? How difficult a repair is this? Expensive?

I've had this set a long time, and would hate to scrap it (it's already followed me around this long). She still puts out a decent picture (would be better with some servicing), and it was always the best TV receiver I've owned... great for DX. As always, this novice is appreciative of any advice you guys can give.