HI Clabe
I have seen a guy use a spacer on his Breuer for that reason, and it came from Graham Engineering, same shape as the Phantom headshell, but it looked ok in the pictures. That would be your easy solution.
Your other option, and Jeff from High Water Sound says he has almost the same problem with is Breuer on the Raven One/Two is that with that arm cart and table combo the spacer for the armboard is a touch to thick so he cannot get the back of the arm down as much as he likes to get a full VTA range of motion if your cart is not too tall.
So if your dealer can have Thomas from TW can make a thinner spacer to put under your armboard, that would solve you problem, or get the new VTA armboard which looks very slick in execution and provides VTA on the fly without compromizing ridgitity.