KMS?
I must say, out of the gate, that your volume of questions to this forum indicates to me that this is car #1 for you? You seem to have picked a great top of the line car and are trying to save pennies along the way. I hope to have a KMS, as do we all, someday however none of these cars are cheap to build. Maybe you should consider buying a running car at a reasonable price first. That way you will form your own needs while owning and enjoying one at the same time. Once you have done that you can sell the car you bought a couple seasons down the road. What the heck, buy a KMS already running. Learn what it is you want different and sell it then build. Word to the wise, most KMS cars I've seen for sale will cost you more to build than the asking price of a runner.
Everyone is right, you need to know what you want since it is a PITA after the build. Remember = These will always cost more than you think! Always.....
Best of luck!
Jeff