People will always whinge about balance. You should know that by now :)
Buff Greyhound PLZ! xD
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I'd give it mainly turret slots for point defense, solaris turrets and flak positioned for great coverage, no blind spots and maybe only one or two heavy slots at most. Then give it a crap load of armour and crappy turning. People who want to RP a carrier will still buy it, and people who thing bigger is better will still buy it regardless of what stats you give it. Lib Dread is made to RAEP stuff, just cause the Carrier is bigger, doesn't mean it has to be better or anything.