I can't give you an answer to this other than I'd sure just rent another matching camera. I think otherwise you're in for more work matching than you save by not renting. They'll never really look the same unless you really work on both sides of the equation. Shooting and Grading, and even then I doubt they'd match exactly.
8-Core 3.0 Intel Mac Pro, Dual 2 gig G5, AJA Kona SD, AJA Kona 2, Huge Systems Array UL3D, AJA Io HD, 17" MBP, Matrox MXO2 with MAX - Cinema Displays I have a 22" that I paid 4k for still working. G4 with Kona SD card, and SCSI card.