Well, I wont be swaping heads on my connie, just to expensive to go into one of these motors. looks like I will just stab the cams and matching rockers in, and clear silicone the vc gasket.
The valve cover gasket is reuseable for years if cared for well. A new one can be got from Murph pretty inexpensively. When I put my valve cover gasket (and well gaskets) back on I use Yamabond to stick it to the cover and a little black RTV on the four tabs. Be sparing with the RTV, chunks can come loose and clog oil passages.
Kawaski is really proud of their gaskets/seals. I needed to drop an oil pan and decided to change all the rubber rings down there "as long as I was there". I sent a friend to the dealer to pick up everything I had listed from the manual. I was very surprised to see over $100 on the receipt. Other than ordering from Murph's, Ron Ayres or Bike Bandit, I really have not found a way to save much money.