4th rock did the Altair Lander and used the orange suits standing. .gattis your Talon has the orange suits in it as well. you could have up to 4 guys in there. I think that would be the suit for IVA's. Even though they don't show it I don't see how they would not have a docking window for the crew if needed to fly it.
Not much is know about Artemis 3 other than a female will be on the flight. Judging by the 3 years left and the size of the cabin looks like 4 people will land. With no airlock I see 2 people eva's while the others close and repress the cabin for the 6 hrs plus EVA's they would swap the next day and the other 2 would EVA. I did see a hard EVA suit where the top and bottom separate and a separate back pack much like the suits planned for Apollo18,19 and 20.
I think you should look at the STS 41 D solar panel deploy, these arrays look a lot like that.