What will be the suggested method of molding? Heat Mimic, then foam, then shell? Or should the shell mold come before the foam?
It always depends on what you need.
If your foot is wider than the shell, then you need to expand the shell (stretch and/or grind) where needed before fitting the liner. Memory Fit isn't going to be the preferred way to modify the shell in this situation, but that is ok. Anyone looking at Mimic Professional should favor taking their time vs. a quick fix.
If your foot is a good match for the shell, then proceed with fitting the liner.
In general, you make sure the shell is dialed before fitting the liner. You can still make adjustments to the shell after the liner has been made, that won't be an issue. But, you should just have the obvious red flags attended to before you fit the liner.