It's been a while that I didn't updated you on this project which is more like a side-project for me.
Some work on the engine cowling:
Undercarriage covers should be hollow, not full, so I used the original parts as masters and thermoformed them
Exhaust manifolds were corrected using brass and plastic card:
I removed the original and horribly thick anti-sliding bands by 0.3mm plastic strips. I chose the Shvetsov M-11 engine from Vector, a real beauty that requires quite a lot of work - especially when I had to repair a few rocker arms broken during delivery (Guys at Vector don't know the meaning of the term "customer-service" apparently...). I still need to had cables and other details on the engine.
See you in two years for the next update on this project.