Your local library should have a free access to Ancestry.
Sometimes Ancestry has a 14 day free access. Might you have a friend with Ancestry subscription. Not sure but there might be a board on Ancestry where you can request for a kind soul to locate the arrival manifest.
The clue to your research is in his arrival manifest.
I would think the copy of the intent & petition would have been in a letter form or the legal size just like the size of the document when your ancestor filled it out.