kernel 5.10.0-28-amd64: linux-headers needed

[mp.2010@web.de]

Dear Sir or Madam,

on my main Debian Development disk - kernel version 5.10.0-28 - i accidentally lost the linux-headers (in dpkg/APT).

Updating to version 5.10.0-37 is possible, but i faced SEVERE grafical problems on a test installation (1000s of © and sound at boot and shutdown time, see eg. https://www.q4os.org/forum/viewtopic.php?id=5853)

#apt-cache search linux-headers-5.*

now shows me, that the oldest headers available are for kernel 5.10.0-30:
(linux-headers-5.10.0-30-amd64
 linux-headers-5.10.0-30-common)

But i (urgently) would need the prior 5.10.0-28 headers.

I would HIGHLY APPRECiATE if you could make accessible the  linux-headers-5.10.0-28  for a couple of days.

Alternatively:
Is it somehow (easily) possible to integrate those appropriate linux-headers (in /usr/src)
linux-headers-5.10.0-28-amd64
linux-headers-5.10.0-28-common
from a BACKUP-disk (with kernel 5.10.0-28 and the correct headers installed) to the dpkg of the main disk?

MANY THANKS in advance and cordial greetings from munich,

M. Pfav