I'm not shure to have understood what have you done.... pictures please!!!
I had to use a bit of glue to get the belt to stay clipped. Guess my Vader is a bit of a fatty....which I wanted that beefy look.
But the ANH suit is two pieces....main suit, with upper body suit.....
And rogue one is similar. Placed its upper body suit on top of the ANH one. So, I have My vader wearing two of that upper body portion at the same time. Simply trying to making him look as beefy as I can. But, with the inner tunic and cape on, you can't tell