My one and only experience is with Bluestone Perennials.
bluestoneperennials.com (this is not a site link)
I order plants from time to time to grow in my apartment (too impatient to wait for
seeds to grow!) and am amazed at the wonderful conditiona of the plants, and I don't find the prices that unreasonable.
In my lastest catalogue (which you can 'click' to receive, also)there are many
Gaillardias listed, including the Fanfare, but not the two you mentioned. BUT you can ask them!! They only seem to show and mention the most popular I think.
At any rate I think you would enjoy their catalogue!