It's a great car!
My 360 experience (over 4 years & 27K miles) has been overwhelmingly positive. It's been a terrific car in every way, completely reliable and much more fun to drive than I ever imagined. The numbers you're using for price and maintenance sound pretty close. Remember it's *always* cheaper to buy the best car you can find (not necessarily the lowest miles), regardless of price. The really clean & well kept examples may cost a little more but are always better in the long run. Baring unforeseeable catastrophes, $5K per year average for maintenance should be more than enough.
If you simply prefer shifting for yourself, by all means look for a manual 360. However, I must say the F1 in my '02 coupe has performed flawlessly with zero issues of any kind. It's astonishing smoothness and effortless precision are amazing and especially advantageous in heavy traffic. It's been my personal experience and my observation of other 360s that a properly driven F1 is every bit as reliable and costs no more to maintain than a properly driven manual. As for clutch wear, either can be driven to the same very high mileage or abused into premature failure.
The devil with these cars is always in the details so do your homework and ask lots of questions. Best of luck in your search and don't forget the pictures!
"Fear of guns is a sure sign of retarded sexual and emotional maturity." -- Sigmund Freud, General Introduction to Psychoanalysis, 1906.