Have a word with Westlake Ploughs. They are near Cambridge way down south and are not cheap, however, look at their stock on the internet and talk to them. Another suggestion would be to find a local ploughing match and talk to the folk there. Its a funny old game is ploughing and quite addictive, a novice my self. But a plough is a personal tool, bit like a pair a boots, not the kind of thing one lends or borrows.