You have most of those I know about. I have been meaning to order some spuria from Aitken's. They have sent me some really nice LA's and JI's, and Barbara Aitken's has asked when me when I am going to try the spuria. They are so pretty. Looks like Wildwood has a very large assortment, with decent prices.
I think there is a Spuria Iris Society. They are sure to have growing tips. I have heard they are similar to Siberians in their care. Which is what it sounds like Arlyn is doing.
Arlyn - do you have yours mixed in with the bearded, or in separate beds?