just an update on this thread for all you chaps out there that may be in the market for sliders, i ended up buying mine from a company called DRC SLIDERS and would you believe they cost me $550! fair dinkum! also payed $90 for delivery so was pretty stoked at the price and they are bloody solid excellent build quality and look great too!. i am not sure but i think they may be selling them through thief bay now but the price may have gone up a bit since i bought mine cheers....
