I just realized that this is dead simple. Since no two slaves of same type can exist:

1) forget about 9-bit while initializing
2) send out a slave type - 485 address
3) if any of that type exist, reply and set 9 bit address

loop till highest type number.

I got stuck in the 9-bit address which does not need be established until initialization is complete.

Thanks for the random input

Erik