F6F - Ziroli vs. Don Smith
That's right. I completely forgot about the Bates Hellcat.
Those plans are CAD drawn and very well done. They are very much like a set of Top Flite plans in terms of the details and information provided.
Kirk (username k_sonn) is building one of these now. He can probably give you some very specific information.
I think the Bates design may be your answer.
Paul