I am thinking of buying a voigtlander 240mm f4.5 heliar to use as a portrait lens on my Linhof master technika. I am wondering if it is usable on a technika and if so what I need to get done for it to fit.

I presume that the hole in the lensboard is not one of the standard sizes and I would need to get one drilled to fit? Is there anything else I need to consider to try and use one of these on a Technika.