I've never seen it, check on V6P or the Bisimoto Ody to see what they use potentially... It would be a pretty complicated design and manufacturing process, which would likely make it cost prohibitive... there are plenty of aftermarket timing gear/chain kits that cause problems on Small Block Chevys and that is two gears with no tensioners, guides, etc.
Well pretty much EVERYTHING else in the class has chains...It's actually an easy DIY for anybody.
Find a 2010 or later Toyota 4-runner. Trade your Pilot for it. Cost of the trade won't be much more than modifying a Honda V6 to be something it's not, and reliability will be way better.
Otherwise, "no" is definitely the right answer.