Maximum Capacity

As most of you know, we are expecting our 6th child this May.  We are overjoyed and are excited to see this new creation God has blessed us with!
We will now be a family of 8 and have come across a few issues in the space department.   The first, with our car, it seats 7.... ouch.  So I am trying to come up with some options.  One option is a company that installs additional seats into your car, and the seats match your interior too.  Plus they are local, which is nice, they told me to come for a visit!  This is a great option and we are thinking of doing this anyway, but the problem is - where would I then put groceries, and adding one or two seats still does not allow me to takes guests or additional family members and such.  (And yes, most of the time, we all trek down to the grocery store, we get a lot of looks, probably since they are all still pretty little).
For my next options I have photos!  So I want some feedback.
First is a Sprinter van.

At first blush, this does seem a little large, but realistically it would work very well.  It can seat from 9 up to 15 depending on how you format the seating.  I went on my birthday to test drive one and they laughed at me and called me the "Crazy Lady."  They were nice, but I have resolved that yes, I am probably a little crazy, but I don't mind.  Bill still chuckles when we think of our initial car dealership experience.  We had hoped there would be one in stock to check out, since it was listed online, and when we got to the dealership, nada.  I tried to let the gentleman know that he had one parked out back, needless to say, it was their shuttle van.  I convinced him to let me check it out anyway, that's when I got the "crazy lady" title.  When Bill got to check out the real thing, he asked me..."You won't drive a mini van, but you'll drive this?"  Yes, I admit, I am crazy. And I don't just want the small one, I want the big extended one, groceries and guests, remember?  So in order to decide, at least on this particular option, I need to test drive one to see if this is something I can even handle!!

Now for option two, extending an Excursion.

Like I mentioned before, I'm not much of a mini van fan, so the thought of still being able to drive an SUV is a good option for me.  When I first saw this, I thought, maybe no one would notice the extra door.  And for some strange reason, I still think of myself as young and hip, thus the reason for this option.  We actually found a reasonable way to do this ourselves - well at least we know the right people who can do this for us.  This will seat around 11 and still have the full space in the back for strollers and stuff I tend to haul around, in addition room for those groceries.
Additional considerations - since I think I am still young and hip - at heart at least, I have not listed the traditional 15 passenger van.  Yes it's functional, but I am going to try out these options first.  And both of these options are reasonably priced as well, since we have the resources of converting these ourselves.
So, what to do?  Any additional ideas?  Am I really crazy?

The next space issue is with the house, it's getting a little tight.  But so far, it's very doable, but if we have more, (I'm not saying we will and I'm not saying we won't), we may need to look into more options!!   I won't worry about that one until we get there.
God Bless,
Coree