Are there any aftermarket stocks to fit the Sako Quad action

[Newsportshooter]

As title, anyone know if they/anyone do a chassis or decent stock for the sako quad.
I was looking for a range stock for it but they are only available new...
Not seen any chassis systems for the quad, which is a shame as there is one for CZ...

Really after something like the Masterpiece Arms BA chassis but again, only rimmy inlet is the CZ...