Tom, A "good set of tools" for wet sensor cleaning includes: (1) a box of Sensor Swabs of the right size, (2) a bottle of Eclipse, and (3) a head flashlight. You also need a tripod, which you already should have, and a bulb blower to make sure you've cleared away the hard stuff before you start swabbing, which you also already should have. It's nice to have a sensor loupe, but a loupe never will show you all the crud on your sensor, and it's a long way from essential. In other words, the essential equipment is minimal.
I've never been able to understand why people get so wrapped around the axle about the idea of cleaning a sensor. It's about as complicated as shining your shoes.