JKU Budget Boost
Have to? No. Want to? Up to you.
If having the axles off-center doesn't bug you visually, and doesn't cause any issues (tire rub on one side, etc) then probably no big hurry to get it done. Lots of kits don't come with relo brackets and people are just fine driving around like that. (personally, once I notice one tire sticking out further than the other, I can't un-notice it, and it will always bug me.
)
If having the axles off-center doesn't bug you visually, and doesn't cause any issues (tire rub on one side, etc) then probably no big hurry to get it done. Lots of kits don't come with relo brackets and people are just fine driving around like that. (personally, once I notice one tire sticking out further than the other, I can't un-notice it, and it will always bug me.
)
Good luck!



