Tampa,

I'm thinking along the same lines as Will here. Of the four models you mention, I'd be inclined to scratch built either the GE or the XLT (GE would be my choice) with a set of foam cores and a pipe deck. These two models have fuses which I think are easier to cut and build than the UFO or DB. Of course, the former two are better suited to a RE engine IMO while the latter two were originally designed for SE engines.

David