Yep, the ODK Shop can assist, but it can be a bit tricky to find the good disc type blade on the website, as shown in the above post.
These apparently do a much better job than the straight blades.
Current ODK offering is a Rover disc blade with adaptor bush:
https://www.outdoorking-forum.com.au/index.p...p;zenid=edd5dcf659cff71327a975e76aa2a503