In addition to and not as a limitation upon other powers and authority, any governmental entity shall have the power and authority to execute, perform, and authorize payments under any alternative financing contract relating to any eligible property deemed by such governmental entity to be necessary, useful, or appropriate to one or more lawful purposes of such governmental entity. Any alternative financing contract may provide financing or a source of funds for any or all costs of acquiring (by lease, purchase, lease-purchase, or otherwise), installing, equipping, and/or improving any eligible property and for any or all associated costs, fees, and expenses (including, without limitation, finance charges).