If you are a member of the Gauge O Guild, please go to their Forum and look for a thread called "Slaters outside cranks and axles" in the Modelling Section. This is the place to express interest.
If you are not a member, but would like a kit, please leave your name in the comments below and I will try to pass on your expression of interest.
No guarantees at this time, but the greater the interest, the more likely it will
go ahead.