VME 486 board for Qnx2

Just a long shot, but I figured it can’t hurt to ask.

We are looking for any quantity of an obsolete CPU board from Radisys Corp.
It is model EPC-5A. It has a 486 CPU, with at least 8Megs of memory. It
plugs into a VMEbus and has an expansion bus that we use to plug in a
Corman/Qnx Arcnet card.

We have over one hundred of these older systems installed at customer
locations around the world that are still running Qnx2. We need to
replenish our supply so we can continue to support our customers.

Any help would be appreciated.