This evening, I fitted one of the new cutting discs and mandrel to my die grinder.

Then it time to trim the bolts going through the F-704 bulkhead.

Man, that cutting disc went through the bolt like a hot knife through butter. Should be plenty of clearance for the weldment now.

Ya probably wouldn't think that this little cutout took an hour and a half, but it did. It probably took 50 iterations of fitting the gear weldment up, then trimming the skin and bulkhead a little. The fit is pretty good. I've got about 1/64 inch of gap between the edge of the skin and the weldment. This may not be quite enough, but we shall see.