To run tin on a ceiling, the ceilings are usually either furred down or sheets of ply are installed over whatever is up there now.
If you have popcorn texture on your ceilings, that could interfere with getting an even base on your furring strips. As you mount the furring strips some could "dig in" to the popcorn more than others, giving an uneven, out-of-plane nailing surface. Nothing should affect the installation of ply, though, as long as there are no grotesque deviations in the ceiling.
Easiest is to add half-inch ply. It gives you a clean area to snap lines on, and with it covering everything, it makes it easy to nail the tins in place.
100% ply coverage will be more expensive than furring strips, but it'll make the job go so much faster and look so much better in the end.
Use a stud finder to find the joists, and to make it less messy (possible vibration damage?), screw the ply into the joist instead of nailing.
You can get box extenders for any electrical items in your ceiling.
One other item...do you have sound transmission problems from the rooms above your kitchen ceiling? If so, it's a great time to mount resilient channels for sound suppression. Mount the channels first, then attach the ply to the channels. It's not a terribly expensive add-on.