Hello Roberto
Thanks for the floor plan sketch.
I can say for sure we won't be able to do that much customizing for a Keystone shell (unfortunatly).
The owner here has some limitations on what we can and can't do, and sometimes there is just too many things going on in a given week to be able to customize each camper.
In your original posting you were looking for ...
1. Toilet install.
2. Propane tank install.
3. Furnace
4. Hot Water/Shower (I guess that means a water tank and plumbing).
We can install the furnace with the propane tank in a shell model (that is easy).
We should be able to install the cassette toilet in the Kestone Shell (I haven't ran it by the owner here yet for a final approval, but it seems easy enough).
We would not be able to install the hot / water outside shower in the shell model, but I'm sure you could install that aftermarket on your own.
Sorry to get your hopes up.
I will push as many custom items through the shop as I can -- I have a good relationship with the guys in production. But even for me, sometimes they want to hang me from the rafters for the stuff I try and get them to do
Just call or e-mail me if there is anything else I can help, with or if you would like to discuss other ideas further.
.