I'm not sure about a bull fee ... but you can get a straw of semen for $20-$100, and there is probably a local AI specialist, Not sure but I recall $30 per for that service.
As for a bull, I think the price would vary a lot based on whether the cows visit the bull or the other way around.
Sorry I can't be of more help.
Aim High. Fail Small.
Repeat.
On my planet I'm considered quite beautiful. Thanks to the poetry in this tiny ad:
Looking for cold-climate growers to join a GOOF livestream panel (Missoula)