Also a big fan of BigReactors. Using 0.3.0A you can split the reactor from energy generation. The result is
.186 mB/t Yellow for 120K RF/t
1 reactor
+ 12 high, core chamber being 10 high
+ 4 fuel rods in a square. Clockwise they are set at (30%, 20%, 30%, 20%) so 4 is likely...