I asked that question in June while at the Windsport Plant.The guide says they can't do any changes to the chassis( suspension wise) because they are not suspension certified shop. He agreed that both changes would improve handling. As mentioned before Ford doesn't know where the chassis will be used.
My opinion is that with the volume of chassis they order they could ask for those changes from Ford. They are bolt on options requiring only basic engineering to change. I doubt the changes would up the over all price of the coach.
The guide did say they were shooting for a price point for the end product. You can read that to say cheap is better.
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