Hi Mark:
Sounds good that your boat planes quickly. Checked on the proper max RPM's on the DF200 and they recommend between 5500-6100RPM's. This will help determine what is best for you. Hoping loaded you can swing the 16x18.5"props. If you can get 2mpg that would be great with the deep v and larger cabin on your boat. I would put those motors on my 2004 Parker 2520XL in a heartbeat if I had the dual bracket. May wait for the larger Suzuki that is rumored to be out next year. Your new motors really look great on your boat and I definitely like the white.