I think John Boyd at Quality Arms in Houston used to import VBs. Worth a call. I tried to find some VB parts for an O/U a few years ago and came up with nothing.
I have a couple of VB Brescia hammer guns (Stoeger imports) and have seen some speculation that the Siace, Beretta, and Mi-Val hammer guns may have some parts that interchange with the VBs. There are also other grades of VB guns that may/should interchange, such as the Italia and Italia Extra. You might be able to buy a beater somewhere just to get the forend.
