OK, Nissan dealership CAN supply the OEM cross bars, but the price in my area would be in 400-500$ range for all parts that these bars consist of: 2 bars, 4 feet and two sets of bolts. The part numbers were already published on this forum. It is too expensive for me.
I have decided to buy from these guys http://www.suvdressup.com/2005_12_NISSA ... ath-cb.htm
Shipping to Canada is another 65$ and possibly tax and duties on top of it, will see when they arrive