I forgot the details of your request concerning the drawings of the
entrance steps. The images I found in the DesignCad files are the same
as those I printed out, which I believe I gave you, but of which I
can provide more copies.

Both the south and east entrance door are drawn as 37 inches wide.
The drawings show three entrance steps (both south and east) each
48 inches wide and 6.5 inches high. A depth (presumably 11.25") is
not shown on the drawings. No balusters or railings are shown.

(For comparison: The rear outside stairs are drawn with treads 11.25" deep,
6.75 " high and 48 inches wide. The bulkhead stairs are drawn with steps
9.25" deep, 8.25 high and 54 inches wide.)

A technical issue arises from the circumstance that on both the south and east
side balusters on the left side of the steps as drawn would project 5.5 inches 
over the window abutting the door. At present, there are no balusters, no
railing on the left, only the flimsy structures on the right, where there
is sufficient wall space.

The carpenter will undoubtedly have suggestions. If you want my thoughts,
we can talk about it.

I would use pressure treated lumber. This URL, I believe refers to inside
balusters: 
https://www.vintagewoodworks.com/turned-hemlock-balusters.html?gclid=EAIaIQobChMI6aGxvLTf3gIVUQOGCh3q1wv7EAQYASABEgLTMfD_BwE