I recently purchased a (5x7 & 4x5) Plaubel Peco Profia (ebay item 220786864940) and would like to know what size lensboards it takes?

Also, Is there a Linhof to Plaubel adapter available and if so where? or am I going to need to adapt a Linhof to Sinar lensboard to sort this (plenty of Chinese knock offs available)? The Linhof to Sinar lensboard is 140mm square but has a normal Linfof plate sized 84mm hole.

The Walker SF45 also takes Linhof boards so I will mount all my lenses in them to give me tha option of using all lenses on all cameras (well all except the 47mm SA XL and 75mm SA MC).

TIA