well, i found a dead P3 HSF, icked it up for free from my dealer..added half a drop of groundnut oil and removed lots of dust from t he sleeve bearing. the fan became normal, spins at 5.5K RPM...
next, mark the hole points on the HSF, i.e., place the card on the core, mark the points where the holes meet the heatsink. get the heatsink drilled in a lathe, clean it with petrol...get 2 3mm dia, 1 inch long nuts n bolts...use the bolts to mount the heatsink. Use a decent thermal paste...
as for the RAMsinks. i got some transistor heatsinks the size of RAM...used a thiiiiick layer of super thick paste....even when its facing down, the heatsinks dont fall off...