Ok none of this works not even the barber shop glitch to get the pants.
The only thing a could do was the car glitch where save the outfit then select another outfit with hat you want.
Save body suit
Put an outfit with the hat you want on
Stand next to car door
Open interaction menu
Go to style...
Try this put the body suit on then put the hat and glasses you want on the mask should disapear but the bodt suit will stay on.
Save that out fit.
Put the body suit back on with the mask do the telescope glitch
Go to style and slect the saved out fit with hat, glasses and body suit and walk...
Telescope glitch should work for hats helmets and glasses.
This glitch is old but I beeive it still works to put pants on the outfit did a month or so ago.