Any other way to get Arthur to New Austin?

[Nasedo]

I try the buggy and that just keeps getting me killed when I'm going for herbs and Dino bones, is there any other way?

[Gunter Severloh]

Using these 2 mods will get you to New Austin as Arthur.

Lockdown Manager Menu
https://www.nexusmods.com/reddeadredemption2/mods/887
Disable Out Of Bounds Snipers
https://www.nexusmods.com/reddeadredemption2/mods/877

[DargonBlak]

For the vanilla game, Arthur is not allowed into the area - first the bounty hunters, then a perfect one-shot kill upon entering New Austin (yes, the devs murder Arthur if he tries)

There are mods that allow it, but those areas are used during the epilogue with John.