Thank you my friends!
And what a great subject - one of my favorites so I will follow with rapt attention!
Oh yes, I was really happy after able to catch this old Gavia kit. This company is out of business and I don't know what happen with the molds. At least the Pfalz E.I was released again by Special Hobby.
I'm looking forward to seeing how you solve the cowling problem, I think there might be a bit of lathe action in your future! 😀
The lathe would help with the cowling, but it looks like the fuselage is also not wide enough. This looks like a 1/72 model! Let's see what I can do about this.
It's a shame that 3/4 of this will not be seen hidden under the cowl , either way beautiful work Frank 
Alexis, at least it shows more of the engine then the Deperdussin Monocoque

The cowling issue would make a lot of modellers just start a new project 
Gary you made my day! That's why there are sooo many started kits and sooo less finished models!

I hope to be able to fix the issues.
Never heard of a Gnome Lambda 80hp with 9 cylinders, or a Clerget with 7 cylinders, but I haven't seen everything yet.
I think now, the Gnome Lambda was only forgotten in the list of 7-cylinder engines.
The Clerget 7Z has its own Wiki page:
https://en.wikipedia.org/wiki/Clerget_7ZAccording to german page 347 was build and mostly used in the Avro 504
Love your engine, Frank -
Thanks Dave, luckily this type is available from Small Stuff.
Cheers,
Frank