Eric -
If I thought the fullered knife was legit, I would have it sitting here now. I have some issues with that knife to not only include the fullers, but the blade grind as well. Fullers or "blood grooves" were fairly common on some production knives as well as theater made knives during WWII, and it is more likely someone added them to this knife and it was not shop done . Without having it in hand I can't say for sure, but it may have started life as something else, perhaps a bit longer.
There is a little model 7 I think it is that has been on eBay for some time now. It has fullers yoo, which I also question.
The second knife looks as though it has been tipped and lost some length, which may also may have been the case for the fighter.