i have currently 2 wireless links on same tower that are connected to local routerboard
from remote side i have to interfaces and locan are also two so want to combine these 2 local network in a routerboard
seeking best possible scenario.
If those two links are on SAME tower, then forget fail-over: both will fail simultaneously.
You can load-balance, but it will be on Layer3. Look in forum, there are numerous examples.