I had posted an answer....earlier, which I guess went into the great electronic beyond.
I think if the modules are complete with power supply / transformer, you could recase them in either mono or as desired configs.....
If Outlaw will sell you a case, and the modules are simple plug-in to a bus, you could make another amp...pretty easily.
Plan 'b' would be to take out spare modules and store 'em against the day you have some kind of wacky lightning strike which zaps all or part of your stereo.