Honestly I don't think that would be very realistic, torsion forces plus imbalanced thrust (cause 4 rockets will not fire perfectly equal) would most likely rip it to pieces, and I don't think they are designed to take that kind of strain to begin with. The LEM on the other hand was designed to land on the moon (and could easily support the thrust from the CM).
A more realistic scenario would be to boost parts into orbit, possibly partially assemble into larger sections, then boost to lunar orbit and assemble.
|