Do it yourself. Look under the front of the engine. You'll see an aluminum plate with four bolts mounted to the headers. Remove that, I think it's an 8mm.
Pick up one of the small adjustable rubber strap type oil wrench filter removal tools. The filter is in a tight spot but don't give in you can do it. One drain plug in the bottom engine case sump. Remove that to drain the oil. Now reassemble, hand tighten the oil filter, fill with oil 4.2 liters and have a wine cooler
No need to replace the drain plug washer just flip it over and reuse the old one, but if you like you can pick those up at any Advance etc. I recommend you use the Triumph Oil Filter to replace, there have been too many stories lately of failure and leaks with other brands of filter on bikes.
