The sprite is "ingame" (uses recolored floater arms though): I saved it as .pck and rewrote the floater .pck, so now I get them instead of floaters in my game.
But the ruleset doesn't exist; there's no floorob graphics, no bigobs graphics, no inventory image, no ufopedia (autopsy, live specimen) pictures.
It will take some time before it reach "version 1.0" status.