What to you mean finish? Like inlet or refinish?
PM Indygunworks, he can either do it, or point you in the right direction. Mark Highsmith IMO is top notch at checkering and finish work.
It's pretty easy to put a finish on a stock. If it's a Drop In stock that simply needs a finish applied to the wood you can do it yourself. There are a ton of options on finish types available. Youtube has a number of vids on how to do it yourself and I think Midway also has a video or two. Where in Indy are you? I'm no expert but I've done a few stocks myself.
It sounds like the stock you want to buy is semi-inletted. Does the maker offer inletting and finishing services?
Quite a few do, you just need to send them your barreled action or rifle, have the old visa card ready, and wait.
Too bad you are so far away, Norm Meredith here in Ft Wayne is an exceptional rifle woodworker.
Mark Highsmith IMO is top notch at checkering and finish work.
That doesn't look to bad, if I were working on my own gun. It's odd that they only list the NO Floor plate stocks as Unfinished. The finished stocks are only $30 more. I'd check with them and see if they provide a finished stock for your gun.