New to storage auctions. Private Seller! Everything to go!

 
I have two 10 X 15 drive up units in Houston, Texas.  I recently closed a clinic before it opened! Much of the furniture and other items are new and never used. There is much more office equipment and supplies in the units.  I decided to add in some antiques and other items I did not wish to travel with. There is approximately 15-20K of inventory, easily.  I want to let it all go for a reasonable offer or more.  Any recommendations?