Minimal Hurd Kernel Source Code

Dear hurd-devel-readers,

I am searching for a minimal edition of the Hurd Kernel
( this is the right mailing list, isn't it? ) to transfere it to an
exotic platform, which is pretty small, too.
I am searching for something like an early  development release
with maximum 200 Kib uncompiled size.
As less assembler as possible would be great.

I hope one of you can help me.
Yours Daniel