Wire is wire, but insulation is not. That's why I asked about Sumitomo wire specifically. The engine harness (from'93-'97) doesn't use tinned wire. The dash harness does.Wire is wire, there are multiple suppliers who will color code wires to spec, if you order enough.
Ultimately I would like to source tinned wire, but this is not as easy in more than 2 color coded wires.