The members of the commission shall be reimbursed for their actual and necessary expenses while in attendance at any meeting of the commission held at the seat of government and shall be reimbursed for their expenses for going to and from the seat of government to attend a meeting. Members may also be eligible for compensation as provided in section 7E.6. All expense moneys paid to the nonlegislative commissioners shall be paid from funds appropriated to the commission. Service of the director of the department of administrative services upon this commission is an additional duty conferred by statute. Legislative members of the commission shall receive payment pursuant to section 2.10 and section 2.12.