1. No they are both 5400 rpm drives and you would transfer the bracket from your old drive.
2. I can't predict how long your DVD drive will last and know of no means to install USB ports in its place. You can however replace it with a SSD drive.
3. According to Mactracker 1.5 gig is the maximum ram for your unit.
4. I have no answer for you on the connection to the TV.
5. If Amazon has the parts you could buy them there but ifixit does ship Internationally I believe. Hope these answers help. Ralph
Answering in order
1. No they are both 5400 rpm drives and you would transfer the bracket from your old drive.
2. I can't predict how long your DVD drive will last and know of no means to install USB ports in its place. You can however replace it with a SSD drive.
3. According to Mactracker 1.5 gig is the maximum ram for your unit.
4. I have no answer for you on the connection to the TV.
5. If Amazon has the parts you could buy them there but ifixit does ship Internationally I believe. Hope these answers help. Ralph