I think this is the correct one for the Escort Mk4 Rs turbo. I thought these are still available from FORD.

https://www.ebay.co.uk/itm/Ford-Esco...1m97SAYYlFVdxg


These fuel pump relays for the Escort Mk3 are expensive now.

https://www.ebay.co.uk/itm/ford-esco...8AAOSwzppaTAE-