Import request for steel lockers Bulgaria

I am looking for 1 full truck load unassembled 3-door steel lockers. Lockers will be moved frequently, so metal sheet should be sufficiently thick, to withstand frequent transport and use. Lockers must have metal or rubber feet, to avoid rust etc. Must come with master key.
Please provide:
- technical specifications (hinges, locks, metal thickness, etc)
- number of lockers that can be fitted in a 20ft and 40ft container
- lead time
- EXW price