Along with harvesting the seeds I wanted to know about hulling them for eating/ cooking. I googled it and found this fantastic site on dehulling them, how to press them for oil, use for animals. It also talked about 2 different kinds you should plant and how many, how much room you need and specifics on planting.
The site gave full plans to build the dehuller,winnowing and the oil press
The site is journeytoforever.org/oilpress
Hope everyone finds this as interesting as I did