A number of years ago, Airfix finally did release a model kit of the TSR-2 (in both 1/72 and 1/48 scale) -- the initial release of the kits sold out very quickly (The TSR-2 is a rather popular "What if" subject). A few years after the release, the 1/72 kit was re-issued in a box relating to the anime along with some extra parts to construct the TSR-2MS configuration. I don't know if there was ever a model kit of the YB-60.