I have a spare 5g SS kettle that I'd like to convert to a HLT. I'm thinking I'd drill a hole and create a bulkhead/valve to drain into my MLT. Are there any good how-to's on this? The kettle will be heated on my stovetop - a gas range - or I have a heatstick I could use if that would be better. Just need to know the equipment list for the bulkhead/valve, and what particular drill bit is best.