For reference, this probably took 2-3 hours. Once the crack was repaired, we noticed that the top was also cracked in two places. The second we heated that up to weld, it came unsoldered, so it was removed. We repaired that and used silver solder to put it back on. And that led to the steel bracket coming unsoldered.... So we removed, cleaned and resoldered it as well.
See pictures here
http://s1006.photobucket.com/user/rrdomeck/library/COE%20filler%20neck?sort=3&page=1
