He is talking about making a machine from scratch, not backporting existing machines.
that’s what he is talking about when he says it “takes a lot of work” :
This process would be different as the prototypes of the syntakt machines are already made and done, the patches are already tested and the feedback is already received. Translating the patches to run on hardware is also already done (since they exist on the syntakt).
The only thing left to do is backporting the said patches onto the m:c.