Trust me, the 535 is not too fast for you.
Great beginner's bike. I'm on one right now.
Well, not right this second
Maintenance is cheap on the bike. I've had to replace the regulator/rectifier twice ($60 each time) and the fuel pump once ($40). Nothing on it is expensive. It's a great little bike, super easy to wrench on, comfortable at highway speeds, looks entirely decent by modern standards, and gets decent gas mileage (42-45 mpg).
If you do get one, don't get an 87 or 88. Get a newer one. Those model years have only a tank under the seat that's about 2.2 gallons and will only get you 75 miles before hitting reserve. The later models added a second fuel tank in the traditional spot to almost double the range.