I've been looking at some of the models and I think they're going to need some work before they will be very useful. Geometry is good but texture images not that great. Of what I've seen so far, none of models have the various parts of their geometry in layers but, instead, various parts are in their own files and have to be combined. For example, the B17 has only one prop in its own file. It needs to be imported into its own layer, replicated into four and then each placed where it needs to go. Then the pivots will have to be set. Not an awful lot of work but has to be done.