I say keep it at the size it is. To piss DJ & possibly CG off, you could even call it the E-F 
Why would calling it the Enterprise-F matter and why/what good would trying to agigate anyone serve? None of these ships are canon so it doesn't matter if names are taken (Not that it'd matter even if they were canon), just as long as the ships all point to unique files.
I've gotta say, as of late it seems a common trend for everyone to throw in names for ships, and while, yes, people do at times ask for some inspiration, it seems extermely common for people to jump to handing out names before the modder is even ready or at that stage of development... Anyway...
Wiley, I'm loving this design. Sharp, sleek and elegant without a doubt. I for one will be keeping a close eye on it (Who am I kidding? I've been following your thread as far back as I can remember.

)