Nice undrilled/unmolested prewar M/70's are getting harder to find all the time. In 40 yrs. of collecting M/70's I've only owned one carbine, a post war .270 which I don't recall what I paid for. $2-$3K sound about right for an estimate of your rifle's value. The condition of the bolt handle and floor plate tells us that rifle had a good home for many years. Congrats on a very fine prewar M/70.