Well as x-rated stated, the bars need to be chucked up in a lathe and the the ends squared up to the center line of the bar, then drilled and tapped to control the perpendicularity of the face. No way can you control flatness with a saw. I know it costs more to add operations to a part but some times they are just needed to control quality.
On a side note, what number is stamped into the end of your track bar? Mine has 2023. I know that the part number for the front is 2024. This may just be a tracking number for RK as I could not find that number anywhere in there parts list.
2007 JKU X, 6.0 ls and 6L80e with a diy kit from RpmExtreme, 4.10, 4" ProComp Stage 1 lift, AEV drop brackets, 315/70R17 Milestar Patagonia MT , Vision Nemesis 111, 17X9 wheels