Here's some pics (hope they work)...
Sorry I didn't get any step-by-step photos, just the finished product.
Real easy to alter this:
1. Handle came off with hammer, screwdriver, and tin snips. Took some elbow grease and patience, but was relatively easy.
2. Cut, folded, and hammered SS sheet over the handle opening...thought I'd have to solder in place but I did not. Pressure from the fold/hammering keep it together.
3. Diptube hole was cut using dremel w/cut discs. I basically cut straight down through the screen as if cutting a pie...probably 5-6 times. Then I cut around the circle to drop off the smaller pieces. Grinding stone to smooth out the edges.
4. Cut out keg top to fit FB. I had to get it in there somehow. This was the only PIA. All I had was the dremel and I went through 10 cutting discs to do it...loud too.
The diptube fits pretty snug in the FB for now. I may anchor it in there based on performance. I plan on boiling a couple gallons of water today to see if it stays in place, but next weekend is the brew test so I'll see then.