I used kegs for my kettles. On my next build I may go with brewhemoth's penrose kettle. the italian kettles (you are looking into)are hard to find and they are pretty thin at the bottom. They are 14 gallons and I have seen guys fill it to the top for an 11 gallon batch. When it boiled it was way too close to over flowing. You would be best served by any 15.5 gallon keg or penrose kettle. The brehemoth website is now in my scan. The equipment they have looks great. Good price on their kettle. Check it out.