Want to Buy WTB Durst Lapla 55 or equivalent

As the title goes I need a lensboard for a Schneider APO Componon 150/4, which has a 55mm thread diameter, to be used in a Durst 138 enlarger. The flat variant of these lensboards are called Lapla, but as long as it fits and is not recessed, it can be any other. Thank you.
raul