yea i think you want that class real bad...you have posted at least 2 different threads about it tonight....im considering doing that class and like the Honda MSF expert class up in Atlanta.... just have to get time off work and a few extra dollars.
If you invest in the bike, your money is going to go away as soon as you decide to get a defferent one.
If you invest in the rider, you will always be a better rider regardless of the machine you are on.
If you are just changing forks to spend money on the bike, consider what you want them to do. Do you want a more sport feel or a more supple feel on the road? I suggest contacting Thermosman suspensions and let mike just make your stock forks work like gold.
There are many threads regarding the 919's fork options. . .from adjustment, to modifying internals, to total replacement. Topics include the dos and don'ts.
First on YOUR don't list. . .both the forks you listed from Ebay will not work. They're too short, though some have used the 929/954 which are short as well.
F4i or RC51 fork are the best OEM. Of course if you have deep pockets, Ohlins. F4i forks are direct replacement onto the 919 triple clamps, you'll just need to get a F4i fender. RC51 are a little of a challenge but still easy to do.