I actually bought the cameras from eBay.. My frens , we did a group buy from eBay.
But bcoz I need the power safety device for 24/7, I went to Honto who is the sole distributor for Lukas, Finevue in Spore.
They charge me $80 for the power safety device, another $80 to install the camera.
IMHO, I feel that if u do not need 24/7 , and u r a technical guy, juz buy the cameras from eBay, do the simple wirings attached to the Cigrette lighter will do.. juz like the aftermarket GPS.
My Lukas 5900(c/w GPS) and Lukas 3700S , cost me total $493 about $250 each.
Hontoracing is charging about $500 for Lukas 5900 (export set) , incl the power safety n installation. For warranty set, it cost around $600 plus.