I-Am-Zim
Captain
Assuming that the type of ship the Kelvin is isn't supposted to be bigger then a cruiser
We don't know what type of ship the Kelvin is. As far as the movie is concerned, it looks like a variation of a Connnie with one nacelle. That's it. Until something is seen/heard on screen denoting what the type is, it will simply be a cruiser. And thus, according to crew and shuttle compliment, too large to fit in the original continuity as far as I am concerned. It fits just fine in the abramsverse where nothing makes sense. And that's fine for the movie, but if they had really wanted us to believe that the Kelvin was actually part of the TOS universe, they could have at least put forth a little effort to make it resemble something from that era. Yet they chose to not care. That's the problem I have with this whole thing. They just didn't care.