yeah the 5 gallon sanke's are 1/6 barrels. They make tall one's like we have and then short fat one's to. I think another name is a pony keg. The regular kegs you get are 1/2 barrels (15.5gal) so a 1/6th barrel is 1/3 of that at ~5gallons.
I called a few places. Michigan Brewing Company does it and it costs I think $40 per keg (maybe $44). They got some tasty beers, but a bit of a drive. I maybe could talk a friend into having one of his kegs filled on his way up.
Dark Horse will with some caveats. They need 3 days notice, and not all their beers are available that way. They range in price from $50 to $58 I think she said. depending on gravity/style. Some seasonal might not be available. This is not likely an option for me because of the wait times. Too much travel involved to "maybe" get it filled.
Still waiting to hear back from Founders...
If you end up going to MBC let me know maybe we can meet up there.
__________________ OUTLAW ALES
Kegged/Bottled: Boston Lager Clone, Crimson Ale, Guiness Draught Clone, Kilt Warmer Scotch Ale, BBB Blonde Ale, Oberon Clone Pt. 1,000