Why do something twice?
Put the pan on witha new gasket, cut a piece of the same diameter heater hose as your tube about 2 1/2 inches long, plug one end with a bolt/metal plug/whatever, then hose clamp each side. Done.
It wont leak if you do it right. Then you wont have to waste the money on another oil pan gasket and you reduce the chance of pulling threads from your oil pump or block since you are only torquing stuff once.
Do what ya want though.