Finally, got my new X5 5303 built using motorcycle 10g spokes.
Wheel Builder: thewheelmaster.com
spokes: Godo made in Japan, high carbon steel, zinc plated
Paid $190 plus shipping, includes spokes, drilling of hub and rim holes, labor... Work seems good however I'm no expert, only time will tell.
There are some things that are different from the old X5 - the plastic part where the wires come out, won't that break when I tighten. I use the 72v 35A controller and the connectors are different. What issues do I need to address before and while mounting the wheel?