Outer edge is track system. As long as you can mount that on concrete you should be good. Will take at least 3 people to put together. Buy caulking for roof. You'll thank me later. Pay attention to instructions as side wall brackets must be installed in certain order.
Yes, you can park in it.
This unit is not available at any location. It's on line but too big for the stores to set up
The door can only be installed on the left side
Any vinyl tape will work and the adhesive can be removed using normal detergent
We dont really have these on display anywhere unless you are in California
There are a lot of people that bring in power into these units but you need to make sure that it is done to code. If you are looking for an insulated unit you might want to consider one of our insulated buildings item 30532 or 30432
The door is fixed on the side
Metal. Instructions say fill with crush and run rock then plywood.