Is there room for a full comercial 1 door fridge and freezer
If you were to add one, you would have to take out the one that is already there.
Looks like no a/c?
No A/c you could add one if you like.
Is the prep table a cold table with a refrigerator underneath, or is there space for a refrigerator?
Yes it's a refrigerator/ freezer with cold table and cutting board on top.
What kind of storage space is available, ie: under the serving window?
There is a shelf above the sinks.
Nothing under the window but you could add a shelf .
Do you have any more photos available?
Generator?
8000 watt inverter 4 marine batteries, it's also has a plug to connect to power source such as a generator, or an outlet.
Is this unit still available?