The OEM Sport Ed Roof Racks are now being sold (black) on Ebay, new, by several Toyota stealerships. Just do a search "Toyota 4Runner Roof Rack" and you will find around 3 or 4 of them. Prices including shipping run around $210 to $235. I just bought one myself today off ebay.
The OEM sport tubes ... they come up on this forum, but most don't want to ship. It took me some months, but I finally managed to buy a pair of them. They bolt right up to the SR5 -- it's an easy change out. BTW, you need the bolts off the Sport tubes. They are a little bit different (larger heads, beefier) than the ones holding on the SR5 running boards.
Good luck!