Mad props for encouraging folks to try mace, and solid scoff for the funky asterisk use.

Store-brand ketchup might "do," but not nearly as well as your favorite brand name, especially if it has an organic version (better tomato flavor, less liklihood of corn syrup, which could oversweeten the sauce).

Also good to be a bit picky about 'chili powder.' Look for one that is only made from dried chiles--some bottles are labeled 'chili powder' but also include most of the non-chile powders in your 1 Tablespoon list, so you can't control the ratios.

For a sauce, I'd recommend a wet product over a mustard powder, both to help emulsification and for the added notes like white wine. (I'd use a brown mustard with some whole seeds, like Plochmann's.)

Half the asterisk-scoff is really moot on account of respect for the 'jerked BBQ' notion. If you still have a posh budget, a slug of Cointreau wouldn't hurt at all in there.