20 regular science labs in a transport, with 50ish ships that are good area the super-fast ships (frigates, tanks are awesome).
Get way out off the map, unpack, let the tanks/etc pop the raptors, repack, move on.
Why 20? Because with 20 of them you can build K so fast you can even K raid against ion cannons.
I find I get to about 1200 just before the first ion cannon rounds arrive, you repack into transport then unpack again once the ion shots expire. Finish the second half, repack, move on. All in less time than it takes for anything your protection can't single-shot to arrive.
Easy.