Your TJ has a Dana 30 axle up front which is a standard rotation, not a reverse rotation Dana 30 like the YJ came with.
However, I strongly recommend you NOT buy your own gears to provide to the installer which can cause warranty problems. The installer will warranty everything he provides but he won't help you with warrantying the gears if you provided them. And if there was a problem, the installer would likely blame the parts you provided & the dealer you bought the parts from would very likely blame the installer... and when things go wrong, it is the installer's fault 99% of the time.
You can ask the installing shop for a discount on the gears to get closer to the online pricing you have found. Most shops will discount the parts if you ask them to, most of their profit is from the labor anyway.