I highly recommend this video. It is a guy doing his Ramair install, but so many of the removal instructions follow the valve gasket process.
This might all be super simple to anyone that is mechanically inclined, but I'm not. It appears many opt to do the Ramair or K&N install after the pain it is to get the plenum out especially with large hands. His video highlights that well
Two tools I would add to aide the user is a much larger 3mm allen wrench which I happened to have for cycling. It will make your life much easier getting those interior clamps off. There is no way my fat fingers would have had room to get those off with regular size. I also recommend having one of these magnetic things next to your wrench to catch the screws before they fall.