What CURSE # are you at present? Would that be 6 then?
Which CURSES have you done so far, also, it lists them, might help me see your route.
Edit: Short suggestion knowing nothing, have you done RITUAL PENTAGRAM?
Sounds like you're right at the edge of 7 then. IIRC there are 12 BELOVED REMAINS, so you can feed TOOL CUBE 10, use 1 for the RITUAL, and keep 1 for your inventory. Maybe it's possible to overfeed it? I'm investigating for now.
In 313, you can get B.REMAINS by gifting GHOSTS some LAVENDER. There's one at ABYSS. One by CLOT DOOR in B.SWAMP. Two are at 111. One by CENTIPEDE DOOR.
would be glad to get a special version of this lovely game. If I had more free time nowadays I would intensivelly check EVERYTHING (like I did on classic game), but will inform any other oddity I may find. (I wish this messaging had spoilers, I do have a version of rpgmkr2000 and 2003 and I recall marvelling at classic game, I tried to learn to use it, did a couple of neat things but nothing substantial)