Which Land Rover do you have? I'll assume it's a newer one with the 7700 lb tow rating. In short as long as your not overweight and willing to get a good hitch you can tow whatever you'd like. I went with a Propride and tow a 30' trailer with no problems whatsoever. The only real problem with the Land Rover is keeping the tongue weight down so that you don't go over the GVW which is very easy to do. I think I only have about 1,000 lbs to play with and that doesn't include my 240 lb frame...
Another user on here (Kevinomaha) recently bought a trailer in similar size and weight to mine and tows with an LR3 and Propride as well. Nothing but good things to say.