I found out from the vet's secretary that the float would be $175-$275 depending on how bad the teeth were. Then there is a $100 farm call charge. Berdi would probably be in the $275 range as her teeth are fairly bad.
The dentist charges $180 for the float and $100 for the farm call. I'm thinking of going with him actually. He's been in the business for 20 years and I'm sure he knows his stuff.