Yes, please. Two, as a matter of fact.
First, the Compendium states that the SDF-2 was planned but never completed. If they completed some later, wouldn't it NOT be listed as "planned"...?
Second, in Japanese, "Megaroad" and "Megalord" (and for that matter, "Megaload") would all be メガロード. Doesn't it seem strange to you that they would essentially call both ships by the same name...? (I guess that's not really an answerable question, it just struck me as really, really odd...)