Hi all,

I will have to look for a porta-potty too. The GF wants something for
middle of the night emergencies.
And for the morning ones too. here is the
http://www.bumperdumper.com/bumper2.htm

About the shower, I was thinking of a (black) water bag, that I would
leave on the roof to heat up during the day.
Plugged to a regular (shorter) shower. Gravity would make the water come
down. It would take a portable curtain (I have seen some circular ones
on camping catalogs year ago). The bag idea was there too.
it is still findable:
http://www.campinggurus.com/customer/product.php?productid=2232&cat=0&page=1
http://www.ourcampsite.com/shower.html
http://www.packinpotty.com/portable-solar-shower.html
http://www.safetycentral.com/bibuposhpren.html
http://www.fcsurplus.ca/shopping/shopexd.asp?id=1070
http://www.outdoorsportz.com/catalog_OGSH_All.html?SEO_campingshower

Very simple, ok only in summer time and very limited (1 or 2 persons
depending on the volume). It would not be the best for morning showers,
unless you live quite South. Unless a solar resistance could be
incorporated. or another system?

I like thoses ones.
http://www.cabelas.com/cabelas/en/templates/pod/vertical-pod3.jhtml?id=0014130&cmCat=perf&rid=0180101070502&xpid=k8962&cm_ven=Performics&cm_cat=Cash%2DUs%2Ecom&cm_ite=SunShower%204
http://www.sportsmansguide.com/cb/cb.asp?p=WX2&i=62218&AID=8800276&PID=398064
there are plenty of them.

I would not mess inside the camper. I know of some winibagos that have
shower right in the middle of the van. the curtain and shower comes down
from the room, you have to remove a trap on the floor of the van and
that's the bottom of the shower.