We have a stage 2 kit that includes the rears as well. All of the pricing can be found on our website. The part # is JDPB1002. The kit comes with everything needed for a complete swap right down to the lines, fluid and pads.
It is completely understandable to have to wait a few months. I'd just rather see you do an all inclusive kit and buy things once rather than having to buy things twice.
Please feel free to call, PM or email me anytime with questions.