All Confused HELP!!!

I am trying to hook up my engine electrical. I am installing a 6AL MSD box and a ready to run MSD distributor and using an MSD coil. I have installed all new amp meter gauges in the custom dash on a bench. I also wanted to dump my amp meter for a new voltmeter using the MAD wiring diagram I have. I am confused as to how to tie all these together. I did splice the black and red amp meter wires together with solder under the dash. I did route the red and black thru the bulkhead by drilling these out and passing new extended red and black thru the firewall. Now at this point I assume I will be placing both the black and red under the nut on the starter relay which will be switched with the ignition key. I also see a yellow wire which also goes on the relay. My new battery cable has the large cable for the battery post and also a 10 guage red wire which I assume goes to that same small switched post on the relay. My battery cable also has a 10ga black wire on the battery end? Where does that go?? Now I am reading that I should run a 10ga wire from the alternator directly to the large terminal on the starter relay?? I will need to install a fuseable link before it attaches to the relay??? Back at the alternator in the brand new M&H engine harness I bought, I have the two small green and blue clip on plugs for the alternator and the large one as well. Am I to assume that I will no longer be hooking the stock heavy plug onto the alternator because of the direct wire to the battery?? But I still have to hood the blue and green to the terminals on the alternator??? I understand these are what goes to the voltage regulator??? I took out the orange box in lieu of the MSD box. So should I just tape up the orange box plug in the M&H harness or do I need to do something else there?? I also have in the M&H harness a 10ga black wire which has a blue spade connector and fusible link blue wire coming off it?? What is that and where is it to go to, or is it redundant in what I am trying to do?? Man this is confusing, or I am making it more than what it needs to be??? HELP>>>>>>