My 16 year old daughter likes her .308 Howa Faux Alpine I put together for $600. $399 for the rifle at Sportsman's Warehouse and $200 for the Alpine stock off another forums classifieds. The rifle weighs 7lbs with Leupold 2.5-8X36 VXIII and Talley LWT mounts repurposed from a different rifle.
Howa actions are pretty square to start with. If your .308 barrel isn't over 20", I'd leave it alone. If not cut it down to 20", which will help lighten things up. I'd spend the money you were going to spend on a CF wrapped barrel and invest it in a McMillan Edge or similar type of stock. If you're worried about recoil just have your wife shoot 125 grain NBT or Accubond bullets, that has worked well for my daughter as seen above.
Howa actions are pretty square to start with. If your .308 barrel isn't over 20", I'd leave it alone. If not cut it down to 20", which will help lighten things up. I'd spend the money you were going to spend on a CF wrapped barrel and invest it in a McMillan Edge or similar type of stock. If you're worried about recoil just have your wife shoot 125 grain NBT or Accubond bullets, that has worked well for my daughter as seen above.