If you are looking for someone in the Southeast, I'd either go to Mick Bub at Brighton or I think one of our sponsors might still be Mornington Kawasaki, who I have heard goo things about.
As for servcing the bike yourself, it will depend on what service is due and what level of common sense or level of mechanical knowledge you already have.
If it is a minor service, it's simple enough for any average human being to perform. Warm up the engine, allow 15 minutes for the oil to settle, remove sump plug and drain the oil, remove oil filter and replace. Refit sump plug and refill with oil to the required level. (Top of sight glass when bike is upright) Check and adjust chain, lube cables, adjust slack in cables, check steering head and wheel bearings, check for oil leaks or loose nuts/bolts, adjust tyre pressures, wash and dry! Simple. It takes me about 30 mins from start to finish to do an oil and filter change and a general check over. If doing it for the first time, it might take you an hour.
If it is a major service requiring a valve clearance check, then unless you really are mechanically handy, take it to a bike shop! It has underbucket shims which require camshaft removal and reinstallation if shims require changing.
All that reminds me that my Rex's throttle cable has a little too much slack (I like it slack, but I think I am missing half a turn!!), so I'm off to do that while I think of it!!!

"I hate to advocate drugs, alcohol, violence or insanity to anyone, but they've always worked for me" Hunter S. Thompson.
There are really only two questions in life. 1.Which way do i go? 2.What is the lap record?