Please Help K5 gurus.....need a factory style

I need(want) a factory style roll bar like the ones offered as an option for the 87 half cab full size blazer. Is there a place that sales these? Will one for a truck of the same year work? Will this one fit?

http://cgi.ebay.com/ebaymotors/Smittybilt-ROLL-BAR-Chr-73-1999-Chevy-GMC-Dodge-Ford_W0QQitemZ230085861826QQcmdZViewItem

I'm mainly doing this for looks, as I dont 4 wheel much and only wanted this truck as a resto project!

Any help would be greatly appreciated!