It certainly seems like an grand adventure.
The Apollo programme cost $25 billion. That is ten times as much as what these guys are looking at spending; more than 40 times as much in adjusted dollars. AIUI, most of that was spent on design and construction, with the remainder on training the Apollo astronauts and infrastructure.
I see no reason why they should not succeed, given that the level of technology now is so much more advanced than what they had in the 1960s and 70s.
I also think there is a lot more science to be done with regard to the Moon. "Been there, done that" is not a phrase I like to see applied to lunar exploration. We have landed in six places on the Moon; the twelve men who did so spent a total time of only 80 hours exploring. To suggest that there is nothing more to discover would be rather like dipping a bucket in the sea in six places all over the globe and claiming that we now know everything about the Earth's oceans.