Bernie

In process of selling "family home" in tiny rural village in Scottish Borders . I'm consider building small 2 bed house in same area as its me and spare room for student/globetrotting kids. The Avrame Trio 75 really appeals and although not got plot as yet, several for sale here partial serviced. Level plots, drainage in and electric within 40 metres even at furthest plot. Plots have outline planning permission for one/one and a half storey houses. Avrame trio 75 kits including interior and exterior coming in at around £35K. Realistically I'd like to get it up and finished for £60-65. (excluding plot obv). I'm not a builder (nurse to trade!) but renovated a few houses over years so all internal, kitchen/bathroom/ flooring etc Id be doing myself . Plenty local contacts so should keep necessary tradesmen costs to a minimum. Not even sure if I'd get planning permission but just thought I'd put it out there. Anyone had experience of Avrames?, am I being unrealistic re costs?, pitfalls etc. Any advice welcome. Bernie