I'm sorry you feel my posts are useless, but the headers for the armbian version I'm running are not in that list. I used your build, linked to from your first post
$uname -a
Linux aml 5.5.0-rc6-aml-s9xxx.
$ apt search linux-image-current
Sorting... Done
Full Text Search... Done
linux-image-current-aml-s9xxx/now 20.02.0-rc1.038 arm64 [installed,local]
Linux kernel, version 5.5.0-rc6-aml-s9xxx
etc. (there is no other aml version available on a fully up to date system on which apt update has just run.
$ apt search linux-headers-current
S