Kumar,
I have a Horseman Press similar to yours but older, I guess. Are you familiar with the adapter back for 4x5 sheet film?
I have read that one was available, but I have never seen one. Just thought I would ask.
Thanks and Happy New Year.
John
While I'm not sure whether the Press will accept it, 4x5 adapters were made for the Horseman 760 onwards. The first ones had spring backs, while the latest ones for the VH, etc. had Graflok backs.