That's no problem at all. Happy to help.
The LXR is more less designed for the shorter bays. There is however some differences. Foam N' Flow is not an option and neither is the Power wheel Detailer but you can have Tri Color Foam, spectra Ray+, Big Shot, and chem alert. There is a few other small differences with the LXR but from a function standpoint it works just like the Profile Max does. The LXR in your size bay will wash crew cab trucks no problem and the height is 7'6" so the taller 3/4-1 ton pickups will work just fine.