Help needed. Looking for info on Mitchell DGA-6.75

[727gs]

I gotta learn to stay away from auctions.
Bought a 3/4 scale replica of Mr. Mulligan in Central Illinois and am looking for any info pertaining to the aircraft.

It was built a while ago in Michigan by a guy named Charles Mitchell, wood wing, steel tube fuselage with wood formers and stringers, O-290G converted to a D with what looks like a Sterba prop.
Looking through to paperwork, it looks like it was done in '07 and sold to Donald Bussart near Paris, IL who has since passed away. I don't believe it ever flew but I have no confirmation. The project came with a big album full of construction pictures but no drawings. May have to find someone to do some engineering analysis on it. Anyone done that?

I would like to get it flying and would like to talk to anyone who might know something about it or knew Mr. Mitchell or Mr. Bussart.

Thanks for your time,
Steve Jones
KENW