If you care about career you get a semidecent i9-1696900KSF from Der8pack and put it under LN2 along with any aircooled GPU among the hundreds that give 50+ points for 01 and AM3. Just remember not to go all out, so that next year you can upload a better score and get your points again. Not that many people care about career, so this is still a feasible alleyway.
If you care about hardware masters, volume is the name of the game. With all the exotic variations of CPUs and GPUs (especially ones that people pull out of their ass to have a category just for themselves) you not run out of models to bench in a lifetime, so neither binning nor even a single stage (let alone LN2) will be a cost/time-feasible way of getting more hardware points.