WWE now sell WrestleMania Travel Packages through OnLocation https://onlocationexp.com/wwe/wrestlemania-tickets
Once the package announcement date is decided, WWE will post information on their social channels with instructions for on sale dates and how to buy.
Depending on where you are in the world, you might be better off booking a day off work to be ready to get the packages.
OnLocation will advertise the rough cost and contents of packages before hand so you will have already decided the package you want.
Your best to call your credit card company also and let them know there will be a transaction on your card on the on-sale date(whatever it is) in USD. At least then you can avoid the charge been unauthorized. From personal experience also, you’re better to have the payment for the package already on your card to avoid the inevitable “no sufficient funds” decline.
Keep an eye on the dirt-sheets and WrestleMania Facebook and Twitter pages.
You can find: