Not terribly interested in this
Shadow Cat, myself; I've already got the Prime configuration, which I love and even got a decent game in today.

I do want the surrounding goodies, though!
Come to think of it, aside from the Prime(I), IIC(O), Resistance IS, and select (S) and hero variants, all of which must be purchased with real world money, I don't think I have any BattleMech goals
left... Huh.
The last thing on my hit list that doesn't have a special variant, uh, variant was a
Timber Wolf Delta configuration. Which I promptly painted up in homage to Kommandant James Kulin's
Timber Wolf from MW4Veng, because he happened to be running a
very similar build, and the mission in which he is fought was one of my favorites in that game.

I lost count how many times I replayed it, in campaign and instant action.