Open sourcing a "proprietary" version of kannel.........

What might be a viable method of achieving this?
I am thinking perhaps a sourceForge project that is a PATCH against X version of
kannel.org.
What this means is that the repository would hold patch files + any added new
files. 
I want no part of supporting a separate trunck development of kannel, that's
what kannel.org is for,
And I doubt they'd be any amused by it.
It's a messy idea, how workable do you think? Would anyone bother to want to
check it out?
I think for many many reasons the stuff would be rejected (some already have)
for trunck kannel.org.
Eg mblox/mqube TLV specialization, DLR handling specialization, GDBM dlr
database, etc,etc,etc,etc,etc,etc...

Ok,attack me now.....thats a bit rough?@#$