Scott Lowther wrote:

.. Practically, just about all that would be used on a
Stick/DIV vehicle from the DIV woud be the tanks, payload interface and
some of the plumbing, and even the tanks would be changed (shortened).
Development would still be required, but at least the tooling would be
in place for some of the major hardware.

Hmmmmmm.

"Stick/DIV".

S-DIV.

S-IVD?

- Ed Kyle