Seems way too hot. Dropping 1 LPPC with no additions actually raises your sustained DPS. That lets you go all the way up to a LFE250, giving you an additional DHS and respectable cooling. Still ugly armor levels though.
The ghost heat starts kicking in at 3, maybe 3LPPC with 2 backup lasers for closer range would be nice: OR just 2 lasers that can also be used as ranged vomit.
I like the 2nd build: no ghost heat and decent range for those ER MED, plus you can still use them for short range work.