Modified standard US beer keg, 15.5 gallon capacity, into a Keggle, a stainless brewing kettle with a 12.5 inch diameter opening in the top, and three TIG welded stainless steel 1/2" NPT fittings.  One for a drain valve, one for a thermometer, and one for a return port. Approximately 24" tall and 16" in diameter. This Keggle can be polished to a brilliant shine if desired.  It is perfect for 5 or 10 gallon batches.  The original top is not available, however an appropriately sized pot lid works best. 

$300 plus shipping.