Guest,
Model 61's in excellent condition are worth about $1500 to $2250. Your friend may want more money from you. But they really do have to have good blue throughout and no problems with the wood. That shouldn't be too hard since they are not that old. Just needed to have some decent care along the way. Is it an octagon barrel rifle? Not too much of a premium but they are a bit unique. The photo is of a $2000 .22 Mag specimen. If it ever had holes tapped for a scope or the wood refinished the collecting value goes in the bucket!!
Have fun and good luck.
2bit