If you drop the AMS, ammo and 1 ton of Gauss ammo you can fill the engine DHS slots and add more armour. If you have the CB, drop 2 chassis DHS to get 14 free crits and add Endo Steel. This allows you to uprate your engine to a 325 with an extra DHS slot.
Also, I would consider an AC/10 or AC/5s if you want to brawl, the Gauss has such low hitpoints that if you get right into the brawl its just going to explode on you.
I mean, this is ridiculously necroed, and this build just isn't very good, so I don't think it's really worth discussing. It wastes the 2 missile slots that could be used on SRMs, it misses the LPL + ML synergy, it has 6 tons of Gauss ammo (I already think 4 is overkill), it doesn't use engine heatsink slots at all, which might allow it to use Endo. It basically doesn't know what it's doing. If it's brawling, then maybe not the Gauss, but rather an AC/20 and use the LPL + ML synergy. If it's long-range support, then Gauss + PPCs with a few MLas in there, maybe some LRMs. Overall, you're trying to polish a (very old) turd. If you just start from scratch, I promise you that you can come up with a more focused and overall better(er) build.
