Might as well Chuck. They do kinda look a little chewed on the ends. You're gonna have to disassemble everything that far anyway....wouldn't hurt to just pop 2nd gear off and replace it. Probably good insurance for the future.
Have you rebuilt one of these trannies before? You'll need a bearing press, a really dandy pair of snap ring pliers....and some dowel rod to press the cluster gear shaft out.
Heed Ernie's advice and watch where that interlock pin goes...when you slide the shift rod out, it will tend to fall out and be mixed in with all the grime at the bottom of the tranny case.
You should have no problems.....I did mine.....and by the looks of your website (nice one I might add) you shouldn't have any problems.