You don't need banjo bolts if you save yourself the trouble and just get upgraded SS lines. I used Z1's stainless steel threaded lines on my upgrade and it was plug and play. It comes with all four lines and the brackets to connect the lines to your strut, etc. to keep the lines secured.
Outside of lines, you'll need to make sure the calipers you have come with the pins and brackets to hold the pads in. If you order new pads, it should come with it.
You'll use your OEM bolts to bolt up the calipers. Front rotors go right on; rear dust shields will need trimming.
Brake fluid, obviously
