suggestions on repairing lower rear shock mounts

well i discovered both lower rear mounts on my car have broken off threads...so of course the shock will slide on but no way to secure it...i did order a replacement parts and they were not a good fit for the shaft diameter to the shock..i did go to the junk yard and try and find a new set of lower mounts but didnt have any luck...i did find some top one and thought about just mounting them in but they are longer than the lower ones...so what have others done to repair this properly if you all dont mind me asking...

View attachment 1715917946
Start a parts wanted ad for some and replace it.