I'd much rather this be a separate starbase and TMP one at that with the correct scaling. TU has all ready done an excellant TNG one which replaces the stock starbase, I say let this be it's own thing.
Like I said, all the post-stock bases are great but none of them can replace the stock one in single player campaign game for reasons I mentioned above.
It's not a matter of canon scaling: any replacement has to match the stock
precisely, or hardpoints etc won't work. If Farshot is thinking of doing three versions anyway, it wouldn't be that much more trouble to do a stock-match ;)