1997 Expedition 5.4 (2valve)

[Julio6306]

Good morning, have a broken spark plug on this triton 2 valve that broke at the base(treads still in head). Since the lisle 6700 tool does not work for this model I tried a fluke extractor which broke as well and is stuck in the plug base. I’m trying everything I can to avoid removing the head since the labor cost is expensive. I am new to this post but I thought I would give it a try. I have it soaking in Kroil penetrating oil. Worst case scenario I’ll just have to run on 7 cylinders. Your thoughts? Thanks