LOL.
I didn't remember asking DDF for help.
The conclusion there was that I need a professional.
Now we're ready for a safe ramp, that is permanent, if necessary.
And we're looking for someone who knows how long it needs to be and how to fit it in the available spot. And to do the work.
You need to determine what type of ramp you're looking to install. You would use different vendors. If you are building concrete, I would recommend filing the job. The next question is , do you have the space? NYC its 1" in elevation to 12" in length.
I can give you a contact of a guy i previously rented an aluminum ramp from (I think he sells as well)