To try and answer your question more appropriately I would ask you first how accurate to scale are you aiming for?
The CARF model is missing the rear missile pockets in the fuse. The rear of the plane was based on the early version with different engines so the nozzels are not correct and neither is the rear bulkhead and sensors.
As a 10 footer it will pass as a nice looking plane stock but if your going high fidelity then you have a lot of work to do. You can turn a kit into a new master model and build from there Id guess but fix the symmetry issues!