I think you may need to be a bit more specific. There are quite a few people on here in the High Wycombe area, but it really does depend on which side of Wycombe you are looking at.
Whereabouts are you and how long can you spend travelling morning/evening etc.? Will have quite a bearing on the recommendations.
Sorry, should have given more info! I live near Pyatts and I think I know the majority of the main liveries around the area. I am looking for more of a 'private' small yard that I will probably only find out about through word of mouth. Happy to travel up to 20 minutes.