Good news everyone! Just spent a small fortune on a new workstation, and will shortly be upgrading my AutoCAD from R13 to something more modern (probably AutoCAD 2000). With my new 64-bit system and a more modern version of AutoCAD, I should be able to get things done faster; and be able to better model some aspects of this ship. (Yes, I know I'll still be running a 32-bit app, but with 12GB of system memory, I should be able to let the app use up to 4GB without any problem).
Probably be another week or two before I get things ready to roll on the new system, and get the model transferred between AutoCAD versions.