In the event of judicial or amicable resolution of the sale, the seller is obliged to repossess all the elements of the business that formed part of the sale, even those for which his lien and resolutory action have been extinguished. He is accountable for the price of the goods and equipment existing at the time of his repossession according to the estimate made of them by contradictory, amicable or judicial expert appraisal, subject to deduction of what may remain due to him by lien on the respective prices of the goods and equipment, the surplus, if any, having to remain the pledge of the registered creditors and, failing that, of the unsecured creditors.