The gauges could probably be done if your a wiring guru and had the schematics. You would definately have to use a GEM from a Mustang and figure out what controls go to where in the LS insturment panel. The message center would definately be a wash as well as the electronic heat controls.
Maybe you could make it work with an upper-end F150 GEM and PCM. IIRC some of them had the same features as the LS like the message center, memory seats, electronic HVAC, etc. IDK, just thinking out loud.