consider it a blessing in disguise thanks for sharing

suggest you move on and as much as the 400 is a good bike, it's rare and may give trouble in terms of maintenance later on

the other bikes are more common, and widely used engine across other Kawa platforms

out of the list, you have 20k budget
you can consider a CBR929 or CBR954 if you're lucky, or any water cooled injection GSXR750

I know I would