I would need much more information. What is the shipping container made of? I would need a sketch of all the framing
Let me take a look at what you have and I'll get back to you in the morning.
Do you have any information on this structure? What the members are?
It looks like I beams supported by deeper I beams. If you can get the sizes and spacings, I can check it for you.
Congratulations!! Take your time and I'll look for it over the next week or so.