Yes, you would just order two frames and a 1555PPK3 Converging Door Kit.
Generally, there is meant to be a header with this pocket door frame, so it will not be able to go fully in the ceiling.
Yes, you can cut down the uprights for a shorter door.
This frame is for a 24 inch wide door that is 96 inches tall. If you want to use a 28" door, you would need a rough opening width of 57", and you would want to use a 152480HD, assuming you are using a 96" tall door. If you want to use a 24" door, you would need a rough opening width of 49". The rough opening width when using the 1500 Series with a single door is 2 times the door width plus 1 inch.
Yes, you would order two of these frames and a 1555PPK3 converging door kit. You’d just cut the frames down for 24” doors. Or you can order two of the 152080HD frames, so that the frames are already cut to size.
This unit is for 84” tall doors. If you want to use it with an 80” tall door, you will have to cut 4” off of each upright/split stud.
This frame is for a 24” wide by 84” tall door, just as the description shows. 84” tall doors aren’t standard, but they are readily available. If you have 80” tall doors, you likely can buy our 153068PF in your local store. If you want that frame to be rated for 200 lbs, you would just buy the 153068PF with a 1060SOFT in the store. The 1060SOFT increases the weight rating to 200 lbs and enables you to soft close or open in one direction. Most of the Home Depot stores carry the 153068PF and 1060SOFT in the Millwork Dept. If you have already bought this unit, you can just cut 4” off of the bottom of the uprights to use with 80” tall doors.
I checked the manufacturer's website and it is designed to carry heavy solid core doors weighing up to 200lbs.
I know people have been able to do this. Just be aware that when you take the studs out of the wall, there will be some drywall touch up that will have to be done on the drywall sheet that is left up due to drywall nails or screws being ripped out.