have you had a chance to purchase and study the fabric swatches on the 'prop cards' that are on ebay right now? If it is possible to remove the fabric from the card, that may give you a better idea of what weight fabric you will need.
Right from the gate, I am going to want a gold command and a red ladies uniform but would also be interested in a blue and a red men's.
We still have some time to try and identify the jeans - def looks like a motorcycle denim pant from one of the pics I have but still could be custom.
Also - are you trying to do the logo pin in metal or plastic?? I would be good either way as long as the plastic is coated with an authentic metallic finish.