Question for SD Card

My friend goes to college a few hours away from me and doesn't really know enough to run hacked Brawl himself. Coincidentally, the Wii he plans to use is at his college and currently does not have Homebrew on it.

Is it possible to have SmashStack and the Brawl hacking files on the SD card at the same time and have everything work.

Ex. Homebrew installs while the Brawl hacking files (from Kitty Corp) are on the SD card.
Ex. After Homebrew is installed, the hacked Brawl will run normally while SmashStack is still on the SD card.

Are those two examples true?

Next to XD
you cant play any coustom stage while you have the smash stack files on the Sd but overvise it will work probliy.