Owens would probably slip a few spots in my combined draft list, but he'd still be #2 on my WR list. No offence to Garcia, he's a good QB, but there's probably 10+ QBs in the NFL that would be pro-bowlers if they played for the 49'ers. Rattay looked great last year against the Rams (but then again, who didn't).
That said, my gut tells me Garcia will be ready for the opener. He's been very durable throughout his career.