Hi Pete,yes the engine is in there and the cowlings are still removeable. It's a very tight fit. The gap at the bottom of the rear of the two is fractionally bigger than I'd like. I did contemplate either sticking about 0.25 mm of plastic on the bottom or thinning the top but decided against it. The cowling over the engine fits perfectly.
The Eduard kit has a similar but worse problem. It's impossible to make the cowlings and covers in scale thickness,they would be thinner than paper,so if the engine and other internals are made the correct scale size the covers won't fit! It's as simple as that.
I think the Cyber-hobby/Dragon kit is made to very,very fine tolerances which makes for potential issues in areas like this.
So you've gone for W.Nr 5819. Galland first flew that aircraft on 7/9/40. It had the more powerful DB 601 N engine running on 100 octane fuel (C2 or C3).
He had previously flown W.Nr 5398 and sometimes the two get confused.On 23rd September he claimed his 40th victory in his new aircraft and photographs taken at the time show that 5819 did not have the Mickey Mouse emblem or capped spinner. By December it had both. The telescope is also absent in the photos,whether it had been fitted or not I'm not sure from memory.
Here's a nice photo of Galland (everyone knows I like a good photo!) with his boss mounting a guard of honour at a funeral. From the date I suspect this is for Udet.
I suspect that Molders was supposed to be there too but he died in a plane crash on his way to the funeral.
Cheers
Steve