Oh Bruce! I got mine from a fellow Xoutposter for $150. My X came without one, and I immediately put up a want to buy post on the classified thread. Someone responded within 2 months IIRC.
I suggest you do the same and you use classifieds to try to sell yours as well. That’s of course if you are not in a hurry

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"better the devil you know than the devil you don't"
2003-03-04 E53 X5 4.4i M62 [SOLD]
2006-03-16 E53 X5 4.8iS N62s
2006-03-28 E90 325i N52 [TOTALED]
2012-09-06 F30 328i N20 (CEO's)