I have an x small Genesis Croix De Fer 853 bike that im looking to sell as its too big for me, im 5"2 with short reach arms!
It is steel so not the light weight requirement that you are after but I wanted to pop this on here just as an option. It has been a very reliable gravel bike and comfortable tourer fitted with Disc brake and grx/ultegra groupset. Below is the frame description but in a red colour. Let me know if you would like more info and pics and if not, good luck with your find :)