I know a few DIY and a few places that offer part, around the Salisbury (south and east of) area... If that area would suit, send me a PM and I'll get you some details
Have you looked around Titchfield- Unfortunately our yard is just full livery- but there is a small one on Bridge Street also down funtley lane there are a few up by the Fishermans Rest Pub and further along as well. Otherwise you have got the bigger yards - Crofton (restricted turnout!) and Pinkmead (restricted turn out in Winter). ALso if you go into the saddlerys they may be able to tell you where to look- Shedfield also have their own little yard too. Hope this helps x