They are a PITA to get at. you are right about the wedge, just keep it at 5 watts or lower. Can't help you with the LED specs.
It will be a LOT easier to take off the lower dash cover, and the interlocked inner fairing parts. It's virtually impossible to get at the bulb sockets without removing some of the plastic. It should take about 5 minutes or so to remove the panels, and swap out the bulbs, then another 5 minutes to button it up again.