I finally ended up doing this repair when I changed the oil on my truck. I used 20 gauge galvanized strapping. I also removed the nuts to hold the strapping down rather than put new nuts over the studs (since some people reported breaking the studs). So far so good, the leak is gone and the truck is quiet again. Hopefully it stays that way.Didn't get any pics, but I basically just wrapped the two worm-gear hose clamps around the bracket (and over the original strapping metal piece)...so they sit next to each other and between the two bolts.
Hose size was max diameter of 2 1/4'' to minimum of 1 5/16''. I still had room on the gears of the hose clamp to make it tighter, but I didn't want to tightening it too much and break the tightening mechanism ....which I kind of did with the second clamp.
This is definitely and easier fix than dealing with the strapping and removing bolts, etc. Just get a heavy duty (t-bar/t-bolt) hose clamp and wrap that sucker around the leaky manifold bracket. Tightening it down as much as you can, and you're good to go.
Tundraslaug, next time your are under your truck, I appreciate pictures of how you put those hose clamps on. I am sure it would help others too. If the strapping fails, I may try your method.