Hi,
A second vote here for the:
1 x 613-01-SI Silver 7/8 - Renthal Handlebars (Off Road) - Universal - Dakar High / 6.5 inch MX
as sold by
B&C Express (I see they've changed their website).
General advice for readers: A key thing here is to get some hand guards with some metal in them -- they should be named lever guards as my hands were flailing around and never near the handlebars whenever the bike hit the floor. I've got the Yamaha ones which are stamped Acerbis on the inside (Rally Pro II, I believe). There's no point in having a tough old handlebar if your levers snap. You'll likely be walking home.
Cheers,
Ian