I'm not too concerned about that. It seems to be a parts rifle already. I haven't seen any 1903a1's with usmc unertls come up for sale - ever - neither original nor reproductions, in the $300 range. All i've seen is some maybe-original-maybe-knockoffs at the usual big auction houses in the 5k-20+k range.
I realize on many forums this is a very heated topic, and I don't really want to jump into here as it's not the point of my post. Plenty of other threads for it. I already have multiple rifles m1903{'',a1,a3,a4} and other milsurps in their original configurations with as many original parts as possible to make serviceable because i do care about preserving history, and I love shooting history. I've been waiting on the right sporter to bring back to life, but they have all been overpriced when taking into consideration the increasing cost of parts as good surplus in some cases is becoming more rare. I was kind of hoping that this one would have a real sewer pipe on it so I could justify re-barreling - alas I was pleasantly disappointed.

Back to one of my other questions - does anyone know the best way to remove the leaf spring on the rear sight base?