I think your ideas are probably fine. When I think about ideas for match stipulations I like to incorporate things that relates to both characters. For instance with Alexis riot I wanted to do a bra and panties thing cuz she's female but a variation of craziness with soldier with the body cavity stuffing. Ghost tank loves electicity so I went with the electrified dildo insanity to match soldier. Find something u think is cool and tie something in with Crimson dong. He likes scat and puss so I'd go with something involving that.