833 Gear Pitting... Help!

I've acquired a neglected early 833 for restore and daily drive...
If it has some pitted gears does that mean that it's done?
Here's a couple of bad examples. The Small one is the Reverse Idler.
The Other is probably 1st gear, I would guess.
The Front and Rear Bearings in it sound horrible, and it looks really bad overall
Can it be Saved?