the cardy Hybrid would also have to be rebuilt from scratch. no-one's touched it. the modelling is a bit clumsy and piecemeal (the wings and Kessok nacelles are a separate unit entirely), and large segments of the hull are their own polygons and can't be smoothed out.
the Marauder model, however, might be rescuable. it's pretty high quality, which means it was probably one of the first ones worked on, and it probably only needs a retex.
now that I'm playing with models myself, mabey I'll do some editing on the hybrid and bring it up to par.