Guys, I already have a giant ocr 3 which is using a surly singlator, could I order this stuff and end up with a decent fixed? Or better to scrap the giant?:

arris Cyclery White Industries/Sun CR-18 Rear Wheel- Road-COPY 130 mm (frames made for 8 or more gears) $249.95 $249.95
Shimano Fixed gear sprocket 16 tooth, 3/32 $21.95 $21.95
Shimano Dura-Ace Lock Ring $7.95 $7.95
Sub Total $279.85
Sales Tax $0.00
Shipping & Handling $10.00
GRAND TOTAL $289.85