No worries at all, hijack away. Id love to keep this alive with others installs. It gives more perspectives on other ways to go about it. I shared your IRS install with someone at work whos doing one on his '55.
Oh and I was reading your thread and Im in the same boat on the welding restrictions also for the same reason you are except its a different device but I havent had any issues using my wire feed MIG. My biggest disappointment is not getting good welds on frame thick metal with it. Im not sure I wanna attempt a high amperage stick welder though close range. I know its a no no but nothing has shown up yet and I had a checkup today. Its freaky that they can see 'actvity' by date and time. You get the "wow what were you doing at 1am June 4?" question a lot.
1971 F-100 240 straight six, 3 on the tree (parted out)
1972 F-100 302 auto trans, pwr steering, pwr brakes (under construction)
"Things are more like they are now than they ever were before" Dwight Eisenhower