Pulling the Rocker Covers and the rockers really is very simple.
You don't have to tamper with the pushrods at all.
Just set them at their neutral position so there is minimal stress from the valve springs.
Remove the Rocker Covers.
Remove the 2 Rocker Arm support screws.
Remove the 4 Rocker Arm Support Bolts in an even pattern as there will still be some slight pressure from the springs.
Now the Silicone Cap is staring you right in the face.
Pull it off, slide the pretty new one on.
Put everything back on in reverse.
See page 8-4 in the 08 service manual for the proper torque and tightening sequence.
If you don't have an 08 service manual email me and I will send you a PDF version.
wsworx@gmail.com
Just remember I likely won't know who you are so reminid me in the email what you need....LOL
If your ride has some age on her or extensive miles then plan on replacing the rocker cover gaskets and o-rings at the same time or you will likely be facing a leak in short order.
If you still have TP Rocker Boxes this is also a great time to have a look at the top of your valve stems and see if you have the infamous alignment problem or not.
You can get the caps here
Compression Release Silicone Caps