Jonnie Irwin helps a couple leave one of Europe's largest housing estates behind and start afresh in Perthshire. For their budget of £375,000 they have a lengthy wish-list. They are seeking a detached character home in a good plot of land within striking distance of a village. Must haves include stunning views, a big kitchen and four bedrooms. A playroom and outbuildings wouldn't go amiss either. Thankfully they're open to compromise. On their budget it's all a big ask...