If this ad is still up, you can be 100% sure that these are still available.
I have a used set of Gobi Rack Adjustable Crossbars for a 4th gen 4Runner that are in good condition (used for 1 year). I used them to mount a rooftop tent on my Gobi rack and they worked great. A set sells for $220 new. I'll sell my used set for $150.
More info here:
Adjustable Cross Bar - Toyota 4Runner (2003-2009) | GOBI Racks
Message with your phone # if you are interested and we can take it from there. I'm in the Denver area (Southglenn, University Blvd & Arapahoe Rd).
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4th Gen 4Runner Build:
http://www.toyota-4runner.org/member...+v8+build.html
Icon Dynamics / Demello / Magnaflow / K&N / SpiderTrax / Halo Headlights / RCI / CBI / Crown / Warn / OPOR / ScanGuage / TRD FJ Rims / GOBI