You're pretty close on pricing. Tacom's barrel machining service starts at around $900-1000, plus the cost of the blank, and you'll still need to pay a gunsmith to fit, chamber, and thread the barrel to your action after Tacom has finished with it.
So it basically adds $900-$1600 to the cost of a blank and gunsmithing. Wth quality blanks costing $550+ (why would you pay $1000+ to structure a McGowan when you can spend little more and get a Bartlein or Kreiger) and gunsmithing services running about $500 a quality fit, chamber & muzzle threading by a reputable smith, you're pretty close to $2k (or more) into a structured barrel.
The price calculator on their site:
Instructions Select a Max Diameter followed by Caliber and Length. If a desired output is not shown, change the Max Diameter and repeat. The form logic-based, automatically updating per end-user selections, and features letter codes are for internal, order processing only. Agreement PLEASE...
tacomhq.com