Along with the things you mentioned you need a rice root brush, a hose, water, and lots and lots of time on your hands.
You pretty much named it all except for the paint and adhesives you would need at the shows. You may need to get some sheen, pink or some other hair products, for your daily hair routine.
As far as what you need to do at home:
When you first get the animal home give it a couple days to get acclimated to its new surroundings, spend time in the area, but don't really push anything on them. Once they seem to settle in, I would start rinsing, blowing and working the hair daily. We really don't start walking them at first it is more just moving from pen to wash rack, to tie area back to pen. The one thing I have my boys do as soon as they start working the calves is set them up prior to kicking them loose every time. This is when you start working on leading them into setting up, getting them to stop with their front legs squared, and their rear legs into position. The less you need the showstick for setting up the better.
At first we rinse once a day and wash once a week, the closer you get to your terminal fair (usually in the summer) they get rinsed 2 to 3 times a day for at least 15 minutes with the coolest water you can get, kept out of the sun under fans.
One last thing, always start at the rear and work the hair forward, we try and work it forward and up at a 45* angle.
That should get you started.