That's a first class restoration! I love some of those old saws. I sold my 1957 Pioneer RA a couple years back, it was a really LOW hour machine. 100cc powerhouse........ As for the bow bars, if you are careful and use them properly, they can be handy. I have one that fits the Stihl small mount, I have yet to get a chain made for it.....I want to get it set up for bucking downed logs over on the farm.......
Bet the guy wants a mint for them. I like them restored, but I would guess a new saw is just as good, and I wouldn't feel as bad about getting a scratch on it