I had a Cape Dory hardtop years ago but no flybridge. There used to be a Cape Dory users group but I think it is now defunct. But I think that there is still a Facebook page that you could ask.
Having seen flybridge CD 28s and knowing that I had to remove he radar to ship my MS Pilot 34 which has no flybridge, I suspect it will be impossible to ship a CD 28 without removing the flybridge.
I think it is a simple task to remove and replace it since most were built with a hardtop and the flybridge was a simple add on, but shipping it along with the hull is another problem.
If you haven't bought it yet I am curious as to what engine it has and performance figures you are expecting. I have some data from a friend's Volvo 200 powered flybridge model and I could extrapolate my own Chrysler 275 hp gasser data if it is that engine.
David