Yes -- "Import" previously-used items.
Yes -- you can bring in a personal copy by ticking off the appropriate box...
...or you can request it as a purchase, in which case the Reserves Specialist will pass your request on to the librarian responsible for that collection area.
See Copyright information re: "Fair Dealing" for Faculty and Students.
Linking to an article through the Library's catalogue not only demonstrates for the student the connection between the library and the subscriptions that make these articles available, but also carries with it no risk of contravening Fair Dealing guidelines.
Just click on "Course Home" and the titles on reserve will be listed.
Generally, it takes about three days to complete requests. Once your items are activated, you will receive an email. You can also click "View Item" to track its status.
No -- you can set up your TA as a "Proxy user."