All you guys who own portable hangars (trailers). Can you provide some designs, pictures, ideas on how you put together the inside of your trailers?

I own a model 4 speedster and don't "currently" have bush tires.

Things i'm trying to learn about:

Tail wheel rails/guides
Main wheel rail/guides
How do you ensure it's lined up?
Do you have any cooling or heating?
Humidity control?
What winch do you like?
Anything that you think is a must have or great to have?

I'm mostly trying to figure out how to get the plane in and out quickly and easily.