I agree the shape looks like a Ju-187, but it had wonky back-retracting landing gear and the funky vert stab that moved up and don't - doesn't appear to have that.
Then I was thinking about a racing Stuka / BF109 modification, but if they were going to extend the nose and go contra-rotating, they'd smooth the canopy too. I'm sure it's probably 'Luft '46 related or similar, just not finding it and can't search all day because they expect me to work...
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-Dan
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