EZ wiring

So I'm finding out that wiring for a 74 duster is almost non existant.

When the 74 duster came to me it was missing the engine harness. Looking at re pop wiring, they do not make anything re pop for 1974.

Sooo my options are crusty used wiring or possibly a EZ wiring kit which I see are very affordable.

Does anyone have experience to share about Ez wiring kits in a mopar??