Watch out, please do not add details or move stuff around that would break multi, please... that is, if your model gets picked up for next mvps
Avoiding this is wrong way to solve the problem. Either everyone plays retail, or everyone plays same version of mediavps. No mixing allowed.
Disallowing artistic freedom or alterations based on other logical and sound reasons just because of multi compatibility is silly. Particularly because this compatibility issue only arises if retail and mvp assets are allowed to be mixed in same multi game.
I see you have good judgement for picking up ships that hasn't been HTLed yet. You should redo the Colossus or the Artemis next.
Bite it. You want other ships redone? Fine, do them yourself. Let other people to work on models they like or want to work on. If Hades wants to do a particular ship that is his choice and his contribution is appreciated if the end result is better than the currently used model, regardless of quality of current model compared to others.