Just remember that when the timing belt breaks it can still bend valves. So by not spending the extra money in quality parts you get to buy them anyway and all the other fun stuff of pulling and rebuilding the head
Is it really worth it? Something's can be bought from ebay, others not do mych
It's tempting to get this just for the tensioner and idler. Rock has the tensioner for 36 + shiipping. Lowest on eBay is 45 shipped. Idler another 15. I'm thinking a bearing would at least tend to warn you audibly before failure, versus a belt.