You might save yourself some time, money, and agony muckin' about swapping out an unknown cluster when there is a great source for new needles and backlighting for the Lexus dash cluster gauges. Check out Lextech Lighting. Pick your choice of needle colors, backlighting colors, etc. I've used the same guys twice now in 12 years. Needle set runs about $100 and backlighting around $30. You pull out the cluster and send it to them. Turnatound time is about 5 days. AND, you don't have to dis-assemble the cluster. Cluster will be better than new because they replace with LEDs that are bright and last "forever". Worth checking out before you find yourself knee deep in wires and needing a big shoehorn to get the foreign cluster into a very small, tightly designed space.
http://www.lextech.org/osCommerce/
Best of luck
GREAT FIND! I'LL CONTACT THEM. THANK YOU
WALDOBIRD