Tips for removing BigE igniter?

Any tips for removing the BigE igniter? Is it as simple as removing the allen screw and sliding it out? What size is that allen screw? Either I have the wrong size or it's stripped out. If I remove those two large sheet metal screws, will that entire assembly pull out? If so, is a new gasket required?

Don't know the Big E that well, but is it possible the screw isn't an allen head, but a Torx?

Looks like an allen.

Anyone know if the entire igniter assembly comes out if I remove the two large sheet metal screws?

This Breckwell video shows how to remove the igniter:

Turns out they remove the auger motor first. Also the screw on the igniter is a 1/8" allen. I'll give this a shot tonight if I have time.