[EricH]

Most CIM-based boxes will run just fine with one CIM. As a matter of fact, every CIM-based KOP gearbox has been able to run with one quite easily.

Now, your other question:

Tell him that [joke] marketing was unable to sell the product, so the whole build is canceled. [/joke]

You can remind him that you're the only one with experience in this. If he doesn't want you to build it, then he takes FULL responsibility for any screwups, because you, the experience, won't get involved by his request. In short, give him exactly what he wants. If he gets in over his head, then he has to ask you to come back onto build (oh, and you should accept that invitation when it comes).

Oh, and talk to a team mentor--you may want an arbitrator if this comes up in future, and I think that might be better than posting to an open forum.