Want to Buy WTB: Arca Swiss (compatible) plate suitable for 4x5 field camera

Looking ideally for a RRS B35 but anything suitable will do. I've noticed my camera, a Wisner Technical Field, appears to have a fairly deep inner bevel on the tripod mount before the thread so it might need a longer bolt than normal. Perhaps it's pretty standard for LF cameras but my current, pretty generic arca swiss plate doesn't appear to fit.

Cheers

Go to the hardware store and get a slightly longer 1/4-20 screw.
Rod

I'll probably have to find a specialist store as round here they haven't a clue what 1/4-20 is It's all millimetres.