Forum has many threads about clocking, should be easy to find one and accomodate to your situation.
There can only be one clock master in a setup, so .. two clock masters won't work
You do not need word clock, clock can be transferred through digital links like ADAT.
Clock signal will be send only from master on all of its digital outputs.
Then you get this picture, which will work
FF800 (clock master) ------ ADAT1 OUT ------------->ADA8200 #1 (configure to get clock from ADAT IN)
------ ADAT2 OUT ------------->ADA8200 #2 (configure to get clock from ADAT IN)
Add two additional TOSLINK cables to get audio from ADA8200 on FF800
FF800 <------------------------ ADAT1 IN ------------ ADA8200 #1
<------------------------ ADAT2 IN -------------ADA8200 #2
You make FF800 to clock master by configuring in driver settings: clock source "internal".
The ADA8200 has DIP switches on the back, after chaning DIP switch position you may need to power cycle the device.
BR Ramses - UFX III, 12Mic, XTC, ADI-2 Pro FS R BE, RayDAT, X10SRi-F, E5-1680v4, Win10Pro22H2, Cub14