Reading that Tankie, I can just tell that you've removed one or two of those carring handles and sleeves. And lost a few of the springs AND the top thinggy before you've got the pin in properly! Join the club.

One thing that you forgot to mention Tankie is that the inner and outer threads that hold the carrying handle to the inner metal sleeve are EXTREMELY fine, of about a zillion teeth per inch. Make sure that the nuts run freely on the shaft before you assemble them because if they're tight or bind, you'll never start them or clean them up if they start to cross thread. And yep, I've ruined a few of them too!