Even at $50, I'm also balking at the Dragon Bf-110 though as much due to it being basically the same version as the nice Revell C 3/4 I own, as price.
I also own the Revell Bf-110G kit,
(please pardon the side tracking on this )
but I believe the G version engine outlines are undersized like the 1/48 version.
However, the old Revell Bf-109 F / G nose spinner looks the right size as a starter for scaling up and scratch building new cowlings for the 110G. Gonna need new wheel bulges , too, for the bigger 110 G wheels. (I'm thinking vacform )