I haven't done it to mine but I've welded a couple up for others, it's really no big deal to do.
Depending on your time frame, maybe we could do it at my shop, I'm planning on an install day in the near future and with all the know how we have in the area it would be no problem.
There's no rush. I just added a winch, so the extra weight caused some sag, leading to just a tiny bit of rub at full lock while braking (eg. pull into driveway, parking space, etc). Short-term fix is to adjust the coilovers back up and realign. Long term, I'm interested in a wider stance to offset the lift (Spidertrax?), so I'll need to get the chop done for that. Got a lot planned for the next 2 months (work and vacation travel), but would love to get it done during an install day :)
Seems you guys have it figured out, but just for reference for folks in San Jose area. Troy at Superior 4wheeldrive in San Jose does a really good job working on FJC, I had him do a lot of welding type work on my truck (since my metal work skill suck). He also does installations, etc of various types of things like dual gas tanks, suspensions, etc.
His prices were very reasonable last time I used him.