hum your looking at a period of from around 3 weeks, At around 200 to 300 per week on full livery. Probably more towards the later as you are fairly southern.
Where i worked we only offered backing on a full livery scheme as a lot of the dicipline is also dont in the stable management.
Ring a few places and ask aorund.
Lou x
£130-140 per week for approx 6 weeks depending on what stage you want your horse at when you have him home? and depending on how willing your horse is! which side of bristol are you north or south?
The whole thing (breeding + breaking) gets quite expensive but worth it! Just make sure you choose someone good to break in for you as it is a vital part of a horses life and should be started the right way. good luck
My horse is away at the mo costing £60 per week because iv allready done alot of woek with him and he has a great attitude he'll probs be there 4-6weeks