Good luck in your search. M1917s aren't the darlings of collectors like 1903's, so deals can be had - if you look hard enough. Be aware that most barrels are pretty rough. Not sure why, but I think I heard that after WWI, most of the 1917's were put directly into storage, without proper cleaning to remove the corrosive residue. Whereas 1903's remained in service, after WW1, and so got maintained. In any event, the result is that it's hard to find a 1917 with a good barrel. Not a big deal, new BBL's are $200 from CMP.
Truth to tell, I don't care for it as much as the 1903. It's heavy, less attractive, no windage adjustment, and the peep is too large for the best accuracy. The accuracy of mine is only so-so, due to a tore up barrel. I'm going to replace the barrel sometime in April.