I love that museum sculpt the more I see it. Would buy those parts as a standalone for my DX08 if they were made available.
Yeah, I bought the required parts from a Toy Anxiety drop of the DX08 Joker as a just-in-case. As much as I think the Museum Joker competes with the Regular Joker on the shelf, I am leaning toward building out a Museum Joker just because I have never had one before. AND I can finally use that big purple overcoat to create the Parade Joker which I have never used before. Big changes for HT Jack after more than a decade on the shelf.
Gotta get a better Museum Joker tie though, otherwise no go.
NOTE: my Museum Joker example above has the incorrect regular tie.