Eccentric Tin Can Man

Greeting,

I'm new and very frustrated on what to purchase. I've looked at so many things... My wish list in order of importance for a stealth van is...

1. Decent gas milage.
2. A panel cargo van with few windows.
3. Something that does not cost an arm and a leg to repair when it breaks down. I know repairs are bound to happen. A rig that is easily worked on with easily accessible parts at a fairly economical rate would be great!
4. Defiantly something that does not have huge milage on it already.
5. I'm 5'8 tall and would prefer to stand upright or at least not to have to crouch over to much.
6. I'd love something long enough to accommodate a full sized bed and a small kitchen work area to do simple cooking in.
7. Something halfway dependable...

Wish list for after purchace...
I don't really need a shower. I can do that at the gym.
I'd need some kind of hidden spot for a crude toilet.
I'd love eventually to get solar.
It would be fun to trick it out with pine to have a cabin feel inside.
Wondering is it legal or safe to put one of those really tiny miniature wood stoves into it?
A Mr Buddy heater is in order.
Defiantly want a Fantastic Fan!

Arrrrrrrrrr.... Please Help! ?

Thanks for taking the time in reading my long list. I really appreciate any of your seasoned expert knowledge on this.