The cost of initial construction of any special public services and facilities not in existence on the effective date hereof, and/or costs to expand existing facilities to areas not heretofore served, and/or costs to enlarge, expand, or reconstruct existing facilities shall be financed by the Town of Readsboro, supplemented by public funds and grants-in-aid, if any, which may be available for the said purposes, except electric line expansions shall be paid for by those customers requesting such services and in accordance with the rules and regulations presently in effect, and as may be amended.