i catch moles up here in yorkshire, i charge £15 trap setting fee and £15 per mole plus 60p a mile for fuel. i charge a set price for farmers, depending on the size of the problem, i.e.. £120 a week or £25 an hour regardless of the amount of moles i catch.
farmers are tight buggers so you gota make them think there getting a bargain, you can catch well over a hundred on a good farm maybe double that, so your guna be trying to get a £1000,00 or more of him. good luck.