You can do this yourself Chewy027. I have added several class of ships to my personal game:
Juggernought
Capital Ship
Gun Boat
Cutter
War Cruiser.
I then designed 5 new ship images for all the races I use.
I increased the cost of production of the Juggernought to be very expensive. (VERY).
I did not like the idea of Base Ships, so I deleted them, and used the images for the Juggernoughts.
I also increased the cost of researching ships by adding 2 extra zero's to the research cost in the research data file.
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New Age Ship Yards
"We've made too many compromises already, too many retreats! They invade our space and we fall back -- they assimilate entire worlds and we fall back! Not again! The line must be drawn here -- this far, no further! And I will make them pay for what they've done!" -- Captain Picard STNG
Borg Breen Species 8472 Cardassian Dominion STNG Ferengi Klingon Romulan
Trek Movie era TOS Illuminati Starwolf