Mainshaft needs to be fixed or replaced.
Check the bore of your input. If it looks the same, you will need to replace it.
Blocker rings need replaced.
Polish the sharp edges of the nick on 1st. As little as you use it, you won't notice any noise and the chip is not bad enough to worry about.
The 1st/2nd/Reverse slider should be replaced, but if you are careful shifting into reverse it could last a long time the way it is.
The 3rd/4th syncro is not bad enough to worry about.