They were wiped by the ASM Mods in this last sprite Remoderation. Since nobody converted them to UberASM... I'm afraid they have to be coded by scratch. I think using UberASM and just doing INC $7B or DEC $7B should do the trick.
Also, converting TRASM sprites to Asar format is not a problem. PIXI comes packaged with a program called Trashkas. Running a TRASM sprite through Trashkas will in most cases make the sprite compatible with PIXI/Asar.