I am not much help with lily hybrid descriptions or information, but none of the lily seed you list require cold stratification for the seed to germinate. However, to produce above ground growth, some will need a cold treatment: all martagons and Lilium canadense, some L.bulbiferum. The Ryirube group I don't know, but usually a cross of IE and DH species (like Ryirube) yields IE offspring. I don't expect you to know what this lettering (IE, DH, etc.) means, but you will want to learn, since it will help you grow lilies from seed. See here:
https://www.pacificbulbsociety...
More information regarding individual species here:
https://www.pacificbulbsociety...
And a more inclusive listing that I wrote here:
http://www.northstarlilysociet...
I am very familiar with getting Lilium seed from the SRGC seed exchange. Some Donors are well educated with Lilium and all the seeds they donated are viable. But more often, donors don't know how to differentiate viable seed from chaff (non-viable). Sometimes I will be lucky if I get one good seed in a packet of "seeds".
Some lily growers never add manure to the soil, because of the high concentration of certain bacteria and other microorganisms that can encourage lily bulb rot. In my opinion, just make sure that you apply only a light application and be sure it is well seasoned manure.
