I am going to wrap a few in paper, put them in an open crate and stick them under the house where its dark and cool. Hoping to hold them till fall lke you said.
I used to hill to my potatoes after they reaches 6 inches then again in a couple weeks. I now plant in grow bags in a soft blend of mediums placing seed on about 4 inches of soil then adding soil to fill the 16 inch bag. Takes them a while to come thru but they do very well.