Besides the printer and the resin, you will need paper towels, for cleaning tools, printer fingers and I don't know what.
Two UV-harderners (with removable floor) as used for drying finger nails and a mini-turntable, to cure the model - which means to harden the resin.
The model will be put on the turntable and that will be placed between the two hardeners. The turntable is powered by a solar cell, so it will start automatically once the hardeners are switched on.
Some people tape the hardeners together, but I don't, because I fear that the setup will overheat if taped together.
There is a comprehensive list of other things that make life easier on the B9 Creator website.
Distilled water is not needed.
My personal addition would be a bubble level, some shims as used for furniture and an ultra sonic-cleaner.
The spatula mentioned in the list should in fact be 2. One like a painters knife to remove parts from supports and the build platform, and a silicone one (cooking utensil, should have at least one straight corner) for cleaning and stirring purposes.
And of course paper towels.
Other things that come in handy, but which you might probably have at home anyway, are a bin with lid, some plastic cups, micro-fibre cloth and some dish cleaning detergent.
And not to forget paper towels.