Zion-Subway w/ Das Boot Standard add-on?

Hi! I got a subway permit and my friends want to do the standard Das Boot on top of it. There are 6 of us; how long do you think it would take a competent group that is this large? I don’t want to rush through the Subway, so I am debating whether we should add on the Boot or not… I really appreciate any thoughts on the matter.

If doing the standard entrance, I think it is a good way to go.

If doing the full upper entrance to Das Boot, which adds a lot more good stuff, I think you would be better off not combining. Full Das Boot and Subway would be a very long day for most I think.