Can a 08 Hyundai Tiburon GT 5 speed be converted to a 6 Speed?

-I plan to buy a Hyundai Tiburon GT but, all I can find in my area is a 5 speed and I want to know if I can convert it to a 6 speed transmission?Since Hyundai never made any 6 speed automatic Tiburons it would be very hard to convert and not worth the trouble.