Had anoth quote today of the following.
In terms of costings, we have 3 visit bands depending on where you are based (from £57.60 - £86.40). Our professional rate for sheep work is £151.20 / hour. There is the option to bring the ram to the surgery and save a visit fee. If a surgical castration is performed we charge a kit fee of £30.00, and any drugs used are in addition. I would estimate that it would take between 15 and 30 minutes to castrate a ram surgically, depending a little on whether sedation is needed.