Hi guys - I'm new here, but a long time fan and owner of Colt revolvers. I have a chance to pick up a Colt New Service .38 Special, blue, four inch, serial number 349xxx, marked USIBP on the backstrap, lanyard ring, four digit number on the butt, 95% condition, not reblued, checkered wooden grips. I sure appears to be a legit Border Patrol gun circa 1940, one of the batch ordered and test fired by the Unrepentant Sinner himself, Charlie Askins. I have a brief window to pick this up, and it will require the sacrifice of some other guns to make it happen. Any thoughts on what a fair price to pay for this revolver would be, and any thoughts on future collectability. Thanks in advance for any advice you can give me.