I wouldn't buy an Alibi or ride one even if they paid me. Worst ride ever. You can replace the entire wheelset but that is an expensive proposition and you are still left with a very cheap frame and components. The Sirrus Sport would be a much better option, with better more reliable components and proper tires. Don't buy a bike to "upgrade" buy a bike that has what you want from the get go. Upgrading can generally be quite expensive and the lowest end bikes aren't really worth much upgrade wise.

Certainly you can tour on anything but having something that is reliable and comfortable is best for long days in the saddle or just lots of riding in general.