modelling question

[cobalt]

So i've come up with the idea of editing a model in sh3. can someone explain to me the limitations of what the modellers have to work with.

what i'd like to do is edit the viic/41 to make it its own unique boat, and not a copy. is this possible to add only a view small things to the 3d hull, like life raft canisters and the atlantic bow?

thanks in advance

ps; i am versed in 3d studio max, i just know nothing how the sh3 engine when it comes to modelling