Hi Tommy,
thanks for the interesting pictures!
The chimney looks good on this engines - the "crown" with the long vents is more of the Doll type (I believe the Carette ones had small round vents), but it definitely looks much better with such a fitting (that is: straight) chimney than without one...
The front support serves its function - the (original) one on my engine is half eaten away by the fire... Perhaps it was not Carette's best idea to pint the burner vent directly at these supports.
Regarding the end cap: a) so nice to see it with the water gauge cover! b) I do agree: it looks as if sb has rotated the whole end cap... But perhaps sb else has another photo for comparison.
All the best
Thomas