Question about SIMH Sigma-7/9 emulation

Hi all, I see that SIMH incorporates the 32-bit Xerox Sigma architectures.? The Sigma 8/9/5x0 architectures are commented out but compile fine? Does anyone know if those later architectures have known issues? Has anyone succeeded in running CP-V on those emulations?? It would be amazing to run CP-V and tha various languages on a Sigma 9 emulations, not to mention the 350-point and 550-point adventures.? However, I haven't found any type of software on line.? Does anyone know of a stash somewhere? I remember that the Living Computer Museum, when it was open, briefly had a Sigma 9 up and running with CP-V, but was restricting public accounts due to some issue with the account generation mechanism.? I wonder if someone associated with the Museum might potentially have access to some CP-V tapes or images, even if the museum is closed. Thanks in advance, Dave