Nothing like pi$$ing on someones parade HST!!
Not sure about the swopping fields and hedgerow bit but guess as long as they re your fields before you apply for the planning - if needed of course - then can't see that it d make much difference.
I know for a fact that the electricity companies will bury cables but I m 99% you ll have to pay the whole cost... call them? Not sure about BT though.
PW