(1) The price may be fixed by the contract, or may be left to be fixed in such manner as may be agreed, or it may be determined by the course of dealing between the parties.

(2) The price may be made payable in any personal property.

(3) Where transferring or promising to transfer any interest in real estate constitutes the whole or part of the consideration for transferring or for promising to transfer the property in goods, this act shall not apply.

(4) Where the price is not determined in accordance with the foregoing provisions the buyer must pay a reasonable price. What is a reasonable price is a question of fact dependent on the circumstances of each particular case.

Section X

(1) Where there is a contract to sell or a sale of goods at a price or on terms to be fixed by a third person, and such third person, without fault of the seller or the buyer, can not or does not fix the price or terms, the contract or the sale is thereby avoided; but if the goods or any part thereof have been delivered to and appropriated by the buyer he must pay a reasonable price therefor.

(2) Where such third person is prevented from fixing the price or terms by fault of the seller or the buyer, the party not in fault may have such remedies against the party in fault as are allowed by Parts IV and V of this act.