Unaffected by Ignite boots crafting help

As I stated in the title I want to craft boots for my fulcrum build.
I know I need to mavenorb the shaper mod "unaffected by burning ground" but I am not sure where to start. The endgame crafting in poe is new to me as I have only ever done some light fossile crafting and harvest last league.
Thanks in advance.

for shaper (or warlord boots, since both can get it) i would say you should have a base boot with the influence that you want and just hold on to it. when you run into a harvest, check for reforge with fire modifiers, you should be more than likely to then run into burning ground + another modifier, and then maven orb for ignite immunity.