Tough one...
If you want a "collector", pass it by and wait for another that's "original". The extra holes in the barrel and the wood alterations on the stock for the ?target scope mounts are going to hurt you.
If you want a good everyday hunter/shooter then go for it! You can always look at the "value" of the component parts. Unaltered "transition" std action/floorplate is probably worth ~$700-800 alone. The barrel marked 1941 is probably not original to the gun but I could be wrong(maybe in a rarer caliber than 270WCF) but it has certainly been altered for a target scope mount/block. The rear sight should be a 22G as well. The slightly altered stock will be cloverleaf tang for sure and desirable for pre-war or transition variation 70s but the wood removed near the receiver still hurts value for most buyers unless that is what they are trying to replace.
I'd shoot for $750-850, consider it a "good" buy and shoot/hunt the heck out of it... still a beautiful M70! Love "transitions"!
It looks like otherwise it is pretty nice condition. If it was all "original" w/o extra holes and wood taken away from the stock AND w/ 22G sight and front "hood", the price would likely be twice the "altered" price.
