It's hard to find Jango parts these days. I was very lucky with my finds, though the MR Westars still elude me, either for lack of availability or lack of money.
I have the MOW's. They are very, very nice, but a bit oversized. You're best bet is patience and daily scouring of the internet, especially ebay. Did I mention patience? Besides, it gives you time to save up for the pair you will never need to upgrade again.