Converting a Nonvirtual Bus to Another Bus Type

In a model, I have a very large data bus (~600 signals) and I want to take a selection of the signals on that bus (~200 signals) to pass into a reference model. I have both buses defined as nonvirtual buses with Bus Objects in the base workspace. Is there any way to accomplish this coversion without a 200-output Bus Selector block and a 200-input Bus Creator block? That's not really a very practical solution for very large models.

I know I could do this with a Matlab Function block, but I'd really rather avoid the overhead of compiling that block, if possible.

[Ryan G]

Could you do this manually with busses in Simulink? It would definately be painful, but you should only have to do it once.