Whoever is the "Crimson Boy" Mars is currently dying in the tutorial to putits. Repeatedly.
Also, I can't seem to wish for the generic "Secret Treasure" in Elona+'s wizard mode. It's the one that gives the mutant racial feet, because not having equipment slots is starting to kill my Gunner Bacteria God with chaotic necktie alignment.
I'm also surprised no one commented on the blue and orange morality of my Wizard mode characters. (That's bacon and necktie btw.)
You could use EloSnack to give yourself the Mutant feat, if you're willing to go that route.
I'm fairly certain you could add the exact parts you wanted with it also.. I'll test that myself a little later.
Edit: You can indeed. The data you need to edit is located within cdata.s1.
Make a backup of your save folder, unequip any items you may have equipped and save the game.
Run EloSnack, load your save, and scroll down until you see "Player 0 Body Part Slot".
We'll be giving your character all of the slots available to a Yerles, so we'll be editing slots 1 through 13.
Slot 1 value: 10000
Slot 2 value: 20000
Slot 3 value: 40000
Slot 4 value: 30000
Slot 5 value: 50000
Slot 6 value: 50000
Slot 7 value: 60000
Slot 8 value: 60000
Slot 9 value: 70000
Slot 10 value: 80000
Slot 11 value: 90000
Slot 12 value: 100000
Slot 13 value: 110000
Save and test.