The vypers might be tricky unless you have plasticard or spare parts from a raider to get the size and crew area correct. Ditto with the bikes as they are longer than the normal size plus have 2 crew.
As for the wyches - easy as with some cutting. A single box of quinns has so many spare masks and weapons its not funny. Making 10-15 wychquinns with a single box looks easy from my POV... I may do just that!
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