I think the Jaguar's character is due to the slab sided design, instead of being all rounded and curvaceous, so I want to try and keep as much of it's 'Jaguarist' look as possible, which can be restricted. Perhaps I could do something as Greg said, and go with new engines and EL/M-2052 AESA radar as an option.
For now my modeling medium is pixel driven, not styrene unfortunately.