Depending on the frequency of your darkroom work, anything battery operated has a tendency to stop working just when you need it. I'd get the dial thermometer. You can get the digital one to calibrate the dial one if you want.
You might want some smaller graduates to measure out the Ilfosol.
You will probably need a loupe for examining the negatives. The inexpensive 8x loupes are good for 35mm frames. Like this $6.50 Kalt.
Some stainless film clips to hold the film while drying would be nice.
This changing bag has an internal frame that makes it easier to work http://www.freestylephoto.biz/25001-...-Changing-Room
The file pages come in 6x6 also, so you don't waste a frame.