That's the model down from mine. I'd suggest that you may want to get a 1TB or larger SSD in the spare drive slot, this will allow you to run the system at full speed, some 10 to 12 times faster than the HDD.
You should be able to get a thunderbolt dock (TB 2 will work with your TB 1 ports) and use USB 3 and an external monitor/tv through HDMI.
As you have 2 x TB ports, you could also get a TB drive for ultrafast time machine backups.