Of course it's possibile!
https://drive.google.com/drive/folde...4k?usp=sharing
As you may see in "config.txt" reducing size comes at a cost!!
This kernel will only work in A1200 with 68030 + MMU in the ZorroIII slot.
The only recognized drive is the onboard IDE interface, even the floppy is disabled.
The only recognized network card are the 3Com 3C589 / 3C562 pcmcia.
It is built around my machine, so it's not going to be very useful out in the wild!
Thanks for the interest, have a nice day! AG