The lack of camber on decks is a more serious issue, as it is very visible on such a small ship and IMHO can't be ignored. I'll cut out and save all the fitting and fit them on a new scratchbuilt deck: an easy task.
Due to very poor packaging my kit arrived with the three deck parts bent and deformed. I put these about 15s in a pan full of boiling water and let them cool down on a flat surface and this was fully corrected.
The decks before:
The decks after: