I am new to RC Universe. About a year ago I received a Byrons P51 that is a little later vintage than yours, still in the box but lots of rash in the foam. I am curious whether you finished yours and what you used for the engine.
I am assembling the tail assembly now and shortly will be binding the two halves of the fuse. It is a lot of work building it. I have been on it part time for months and am only to the tail.