Yes, 4 people can lift the body off no problem...what I would recommend is using a 2X4 or 2X6 (8 ft wide) one at the rear about mid to rear of wheel well and the other just under the front door post. Alot of people recommend tack-welding some 1" tubing across the doors (ront to back and side to side to keep everything alligned. I didnt do this and rehung a door to check flex and was OK. Proceed at your own peril...it all depends on how stable/secure your tub is...if you have poor rockers, it will fold. Use a little common sense and you will be OK, proceed slowly and think about it as you go. As far as whats involved with removing the tub from the frame...all wiring, all lines, gas tank fillers, 8 body mount bolts and any hoses should be removed. Like I said check and re-check...the only problem I had was with my clutch linkage--how do you forget that??? Too many cooks in the kitchen that day...and got rushed; its your ride, check and double check. Best of luck!
John