A model of similar layout (Lear 35) is on my to do list but to a much smaller size so it will be interesting to see where your project leads.
Anyone care to suggest on how to proceed?
Step 1, pick other people's brains.
Sean McHale is building a Frankel Learjet on RC Scale builder:
http://www.rcscalebuilder.com/forum/...638&PN=1&TPN=1
It's an EDF conversion of a model that's been ICDF & turbine powered, many problems will
be similar to what you have to solve.
Good luck! - John.