I was digging around weeks back and found these

P.1103: https://preview.redd.it/32fh3ji57ie61.jpg?width=1280&format=pjpg&auto=webp&s=fce9f613ad90557fc02fdc601c72e38efb5ec8f7

The P.1103 was a proposed interceptor designed to meet the RAF’s requirement for an interceptor that could defend the UK from Soviet supersonic nuclear bombers like the Tu-22 Blinder and was designed to use the 20,000ib thrust De-Haviland Gyron Turbojet and was to be armed with the infrared guided Red Top AAMs or a smaller version of the Red Dean Active-Radar guided AAM or an improved model of the De-Havilland Firestreak known as Blue Jay but it never left the design stage.

P.1121: https://preview.redd.it/eypt7pdi7ie61.jpg?width=1280&format=pjpg&auto=webp&s=8f3a3514ec3c564875474dd3bbf9b34b30a02a0b

The 2nd is the Hawker P.1121 was a proposed supersonic fighter intended to be an interceptor plus a ground-attack platform and was intended to replace the RAF’s Hawker Hunters although unfortunately there is limited information available so I can’t provide much detail sadly but it was apparently proposed to have similar performance and capabilities to the US F-4 Phantom 2

Credit to both model makers as these are really good