If you are thinking in terms of attack dice, remember that this is very similar to the Dilgar loadouts, but if you have interceptors, or higher hull, or side-mounted guns, you will get notably fewer dice. With CAF now being a CQ check, Twin-Linked is now or a par (if CQ check is 8) or slightly better than AP (if CQ check is 9), so that should factor into the number of dice as well.
If you get longer ranges than Bolters, you can expect to lose more dice as well (Dilgar pay a steep premium for Range 15 weapons, Range 10 is much cheaper.) If the Ion Cannons are 18" or so, you should expect fewer dice as well.
I'm expecting "Heaps and Heaps" is still reserved for the Dilgar's forward-mounted weapon systems and the Abbai weapon banks.