Here's a thread I posted offering to lend my Greenlee. All I ask is that you reimburse me for shipping somehow. I can't keep paying $8 to lend it to people.
I'd be more than happy to pay shipping and a little extra for the trouble. Let me know how you would like to go about payment and I'll get it over to you.
eastwood sells a 1.25 hole punch for 21.99. I used it on my face plate for outlet box and worked fine. I have not tried it on stainless. If you want, I could try it on spare piece of metal from my cabinet, if it goes through that, it should work on the stainless wall of a keggle.
if you are in the philly area, you are welcome to come borrow my hole saws or green lee bits or cut it at my place. I just finished cutting my cabinet, so I got all the stuff here.
I'd be interested in renting the knockout punches for Kal's setup too. Or if anyone would want to do a "group buy" and lend it out throughout the group. Seems like this would be the only time I would use the tools, and a lot of us are building similar setups.