Dimension of Zalman VF3000 VRM heatsink?

[mbh]

I using Trad 2 GTX, but I can not buy VRM heatsink, all shops at my location don't import them

Therefore I want to make a VRM heatsink for ATI 5850, I see to make the VRM heatsink like VF3000 is easy. Anyone have the dimension of edge, hole, tall?

Trad 2 is good, but it can not use with backplate , the heatsink RAM is so small to take the heat, VRM temp sky up to 105 oC after 30s while with stock fan it is stable at 90 oC with extreme burning mode in Furmark. The room temp is 33 oC!

Or the cad drawing of 5850 ref board.

Many thanks !