Don’t want to sound like I don’t know much but what does BIAB method mean?
Brew in a bag. Mash and boil in the same kettle using a mesh bag to contain and pull the grain ahead of boiling.
See above. An easy way to make all grain beers were the only additional stuff needed beyond extract brewing equipment is the brew bag.
Whooohoooo!!! 
Hahaha…no wonder I didn’t know. Never did it…
I love BIAB and do it exclusively. Really recommend giving it a try!