Here, try this. Uses all available tonnage while maximizing the most versatile, effective weapons while removing extraneous ones. That Ac10 ammo should be LBX. Gonna resmurfy.... and done.
I'd rather skip 2 of your MLas and go with double AC10 here, as I absolutely dislike LBX ACs in MWO. But maybe that's just personal preference as there are indeed some builds / chassis put there where double shotgun DO work.
If you want LBX and SRM, you can downgrade to SRM4, that way you can have more armor, bigger engine. Personally I would just drop the SRM all together and get more LBX ammo and bigger engine and what not.