Which 8x10 mono rail camera should I get for my schneider kreuznach xenar 480mm

[Qeb]

Hey everyone,

I have a field camera for my Xenar 480mm but the bellows extension isn't enough for head shots.

I'm wondering, with my 5 inch diameter Xenar, what lens boards/8x10 mono rail cameras will it fit?

My field camera lens boards (toyo) I think were 6.2 inch square (the lens did fit) and the Sinar ones I believe are 5.497 square.

If you don't think the Xenar will fit that Sinar camera/lens board, what other affordable cameras would you recommend that
will still allow me to add rail extensions to get to 30ish inch bellows extension?

Maybe one could use a 4x5 cambo like front standard/lens board which are bigger I think, bu then you would need a different bellows for the Sinar.

Sorry if my writing is confusing lol

Thanks for reading this.
Be well

Best Regards,
Kevin H.