I don't think Rinker offers it as an option on the 260 in the cockpit. I saw one in the cockpit of the new 310 at the Baltimore Boat Show. If I were looking to put a grill on a boat, I would not want one in the cockpit but instead on the swim platform and that's is just a personal preference. Take a look at the options in this link.... they show both swim platform mounting and portable table top units.
http://www.****insonmarine.com/bbqs.php