just for a point of reference, i ordered the Haste radiator on March 20th this year. i did a write up for Haste outlining what had to be modified to fit the radiator in the MK3. i talked to rob at 935 and around mid-year, he was carrying these units on his website and i supplied him with the picture of the final install. between then and now, he stopped carrying them as they are revising the design. he told me they are changing the top tank to accept stock rad clamps and possibly relocating the lower dowel pins so that the lower pinch weld of the rad support doesnt need to be cut/bent liek i had to do.
I installed mine with Contour/Cougar fans and alot of custom wiring. i cant access the pics right now but i think i may have done a write up already on that other website but i dont even remember.
i used foam rubber to seal the top tank to the rad support as well as the sides. when the fans turn on, you can feel air being sucked in the front grills as well as the leading edge of the hood. if you stand at the REAR of the car, you can feel the air blowing from the fans.
if you guys need pics, i can supply them later