one of my classes uses a custom courseware package but i never bought it (managed to find most of the articles online). is there anyway to rent it out for an hour or so ?

You could ask someone in that class if you could borrow theirs.

There are these people, who are specifically hired by the good people of McMaster University that specialize in answering these kind of questions.. i think they call them librarians? maybe consider asking them, i think they might be of more help

No, they don't. Courseware changes yearly and is a custom production. The library does not stock courseware.