The final paper will eventually be 4-5 double-spaced pages of text, not including the title page and reference page (In other words, the grand total will be 6-8 pages). You should plan accordingly to have enough research information and support points to fulfill this page requirement. This research proposal should only be 1-2 pages long.
On your proposal, you may use direct quotes, paraphrases and summaries for your support points, but they must include an in-text citation, and quotes must be in quotation marks. You do not have to have full research done at this time and you may, if you like, only include your own rational arguments for which you will find support later.
Remember that your supporting arguments will support your thesis. In other words, your supporting arguments will explain why your thesis should be believed. The opposing arguments should represent opposing perspectives or questions that you expect your skeptical audience to have about your thesis. In other words, your opposing arguments are reasons that your thesis should NOT be believed. The replies to those opposing arguments are how you would fend off that skepticism, point by point