The members of the Authority may be paid for their services compensation in either (i) the amount provided in the general appropriation act for members of the General Assembly engaged in legislative business between sessions or (ii) a lesser amount as determined by the Authority. Members may be reimbursed for all reasonable and necessary expenses provided in §§ 2.2-2813 and 2.2-2825, if approved by the Authority. Funding for the costs of compensation and expenses of the members shall be provided by the Authority.