The Pixma Pro 100s are good printers. Canon will run ink and paper specials from time to time. (Buy 1, get 2 free, that type of thing)
I stocked up a couple of times, so I have a few boxes now of 13x19, 8.5x11, 5x7, and 4x6, and plenty of spare ink.
The Canon software works as a plug-in to Pshop or Lightroom and somewhat simplifies the process of getting a good print.
You'll still have a bit of trial and error.
I think I paid $110 for mine on Craigs, and they included a 50ct box of 13x19
Btw, I found that matting the 13x19 into a 22x28 frame makes a nice layout.