Found bin-hexed files in a folder on a CD dated 12/17/2003 and they’re highly likely what I used to update to OS 9.1, 9.2.1, and 9.2.2 on a Lombard and the original B&W here. So while waiting for DieHard’s drag-n-drop, you might try these.
DH might be waiting on a Mac mini that I was to originally ship to him on Monday - but now it may not leave here until tomorrow… which means that he might get it on Saturday, or possibly next Monday.
In any case, warm up Stuffit Expander and party like it’s 2003.
Hope these work for you… and if not, there’s DieHard’s drag-n-drop
…also coming to you soon.
[A PM sent to you with links for these three files.]

And yes, I’d pull that SiL3112 card before any attempt to install.