Stock carbs I assume?
I would try some 280 mains, stock pilots, needles on middle clip.
That should be pretty close, that is the exact jetting I have my buddies bike set up at and he has very similar mods to yours. You may be a little rich on the main, but see how the 280's feel and you can work your way down if needed. At this elevation even on my banshee I've always ran stock pilots. I would suggest picking up a few different main jets like: 270's, 280's, 290's. The hotter it gets out here if your bike feels rich on top, try a size smaller on the mains.
Hit me up, I ride at Sand Mountain all summer long. I live about 90 minutes from there.
-Zach