Joe, I'm just going by what the Morris website says
http://morrishobbies.com/product_inf...roducts_id=435
They also have color selection now. I know the P-40s are coming with mechanical retracts, maybe she got her planes mixed up... The Spring Airs are supposedly a direct fit for this model according to rcwarbirds.com
Definitely give them a call and see! If they're doing Spring Airs I may just need to get myself an Invader too...