So I picked up a cockpit upgrade for the Monogram Phantom. Now I've done two kits with a cockpit upgrade and they were pretty shake n bake. Paint, then assemble and drop them in. In one case I had to shave some of the original sidewall detail off. This baby is a totally different animal, the instructions show you have to do some major surgery on the plane itself. Anybody work with this one before? Or should I just build it oob.

2 attached images. Click to enlarge.