About the DTD thing: Basil lion said that himself somewhere on deviantart, but that was for the first version about the suit. I have no idea about the second one though; measurements might have been used, yes.
For the fur type, yeah, it most likely seems to depend on where you live. From personal experience though, all the fabric stores stock up on fur and fleece etc all year around. There doesn't seem to be a pattern at all. My other suit was also made with seal-fur - thicker, shorter and easier to air, however, it definitely isn't the one used for the lioness fursuit as the pile is still slightly too long.
I have a feeling it isn't a full-fursuit either but she does state that it's a fullsuit on her website.
Doesn't mean that it covers her waist though-after all it isn't visible lmao.
I really can't be bothered to ask Basil-Lion. He doesn't seem to respond much to comments asking about how the suit is made.
Here is the link to his DA
http://basil-lion.deviantart.com/