Doug is a great resource.
For me, must see trails (some may be closed): BFE, Pritchett's Canyon, and Behind the Rocks. If you can get the license for it, Coyote Canyon is intense, but I think it's associated with BFE and may be shutdown.
If you're taking a Razor, I imagine Arches would be fun a hell, as well as the dunes at the end of Pritchett's.
There's one more, but I can't recall it.
I would try to connect to a local club so you have people who know the area and you're not alone out there.
Good luck!
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