@jeremy is there anyone on the team who is familiar with the unix distro being used, hardware etc at enough of a detail to help ?
https://github.com/nodejs/build/issues/885 suggests you might be right about Node10.x and 32 bit systems, and I’m presuming that the Rachel 3+ is a 32 bit system (I don’t know how to check that)
Problems we are hitting is that more and more packages are dependent on node 10.x so we currently can’t get our system to install on node 9.x which means we can’t put it on Rachel 3+ 
Any suggestions before we move to one of the Raspberry Pi solutions (we might see other problems there, but at least there seems to still be a support community for the smaller AMD processers) and there doesn’t seem to be anyone we can find who even understands what is on the Rachel 3+ box.