Is the Gyro Flemoid Full Sprite Set Download Still Available?
That Kind of Flemoid is useable for ZDoom Decorate and is Cool.
May I use it?

I'm afraid the answer is no for the time being. Flemoidus Gyro is nowhere near finished as of yet.

I feel silly for having used it myself. However, with the release of the new Flemoid, I was able to do away with the cobbled up version I made.