Are Bonnie Side Casings The Same Fit From 2001- 2015?

Wondering if anyone has an answer to this question as I have a set of pristine chromed side casings on a Bonnie that I want to use for mild scrambling duties and so I would ideally like to pick up some battered casings to fit and keep the pristine ones for spares for either re-fitting should I reach a point where I want to put her back into road trim or also if I need them for my other Bonnie. Motone sell a gasket set which the claim fits 2001-2015 Bonnie's including the side casing gaskets which would make me think that cases from any Bonnie up to a 2015 would work but I have long since learned that you should never assume anything just because a seller says it's so. If it is the case it means that I could pick up some dirt cheap T100 side casings as ones off 790cc Bonnies aren't exactly plentiful especially in cheap and cheerful battered condition.