Amazon Glacier to S3

Hopefully someone is familiar with AWS as I am not

I have previously imported 4TB of data to glacier via the java import/export as one vault item now I need to access all of the files through amazon S3.

The java import/export tool does not support export from glacier to an external drive and I cannot find any information on if or how it will export to S3.

the little information that I have found says that when you do get access to your files in S3 it is for a limited time so you must manually make a copy of the data in S3 to make it permanent.

http://stackoverflow.com/questions/23800969/permanently-restore-glacier-to-s3

but it offers no info on how to access the files or how to use the slowest option to access the files from glacier to avoid a huge bill.

Has anyone done this or have any instructions on this?

Thanks!