i've just bought and older property which has an IDEAL MEXICO SUPER 2 ( no electronic pilot, no room thermostats) boiler in the dining room fireplace, i want to decommision it and get a more modern condensing boiler, have it installed in the bathroom, upstairs above the dining room, above the hot tank, may need to reduce the size of the tank. I have two power showers so dont really want to et a combi. Ive been quoted £3000 is his a lot?