aye, a power racks a great addition. as well as being versatile (squats, bench press, shrugs, rack pulls, RDL, calf raises, maybe even pull-ups and chins with the right attachments) it also ticks the ‘safety’ box which should stop people hurting themselves and appeal to the H&S bods……
match it with a separate adjustable bench (no built-in stand) with leg extension and youve got a good variety of exercises just with those two bits of kit. obviously a selection of bars, db’s and metal plates too.
that should sort out the weight monkeys, cardio just good quality rower, treadmill, spin bike and cross trainer should do.