you need to use a valve cover to make the spacer. the gaskets are just like a big shaped rubber ring that fits in a groove, i got the new cam from napa for 109 then 14 to send it to wash. state. and 128.25 to have it reground.
the name of the company is oregon cam grinding, (360)256-7985
just tell them that jeffrey hann refered you to them, they did a great job on my cam. but make sure you get a new cam from napa first ok. they have the cheapest cams out there, plus after the regrind , they do a rockwell hardness test on it. my cam still had a RC 55 hardness.
trust me, they do great work, they have numerous grinds, just tell him what you are looking for and he will help you.