ROTJ is the version I am doing. I bought 2 long sleeved ones. I took the sleeves off one, hemmed the others and attached them both. I then used the rest of the cut up set to make shin and thigh pouches.
It looks pretty decent.The sleeves and pouches are a little lighter.Saved some cash on another jumpsuit though.I paid 3 bucks for a yard of fabric at the local fabric store to make the sleeves and pouches.
If you'll do a search in here for a thread called "those who went the dickies route" or something like that, there are multiple sites listed that sell these particular items.
ROTJ - Most people buy the gray and then bleach them the color they want. 100% cotton works better if you want to remove the color somewhat.
I bought Red Kapps. Well made stuff, but I wanted the ESB blue. DO NOT BUY THE POSTMAN BLUE FROM RED KAPPS. The picture shows it as a bright blue, but it is almost navy. Perfect for Jango, but NOT for ESB Fett.