George my friend, here's a few pictures of the Tamiya Beaufighter kit in 1/48 scale to hopefully entice you to join in on the fun...
It looks as if the kit is supplied with proper decals to build two different versions of the plane that should be appropriate for the GB.
The box art is for one of those planes. It's from the 272nd Squadron and is also the plane on the cover page of the instructions.
Here's another picture showing a little side view of the same plane as per the kit instructions.
The second option is a Night Fighter which was flown by 600 Squadron which provided night cover for Allied operations.
Here's the box art for this plane on the side of the box this time.
and another view from the kit instructions.
It looks to me like you can build two different planes for this GB right out of the box without having to get anything special like decals.
I hope this helps to answer your questions my friend. Take care, and I hope to see you start a Stuka or a Beaufighter (or whatever you chose).
Louis