I've googled "where to buy heatpipe".. nothing satisfactory.. i've searched the forum.. found a thread.. not helpfull... but i still need heatpipes.. and unfortunatelly, salvaging them from other products (as recommended in other forums too..) is imposible.. i need long tubes and as thick as possible (6mm is not very efficient if the length is too big).. so, my question: WHERE CAN I FIND SOME TO BUY?!