And those shoulders tend to break a lot
Besides, no Valkyrie ever made is lineart accurate (Battroid wise)
The only retooling the 1/48 needs is a VF1D and an optional parts kit that includes: a shorter nosecone for battroid (very simple, since the nose can already be taken out), side covers & big hands (the ones included in the Armored) and maybe a standing pilot (and a TV Roy). So no, I wouldn't buy another one, they are just perfect as they are