If you want a complete loom yes. There was a guy that had a batch of brand new XR3i EFi looms on ebay.

If I were going to tidy it up I'd be more inclined to unwrap the old car loom, cut out anything that's not needed any more (trace outward from the old ECU connectors), re-cover it and keep the current "EFi loom" as a seperate loom.

Lee