So it finally reared it's ugly head and took a turn for the worst..............

I have been noticing that some of the little things the truck has been having more and more troubles with the more I do with her. And then finally, the other day, I went to start my truck after a day at work, and it fires..... I'm warming it up...... and after about 5 minutes of holding the gas down, maintaining 1 - 1.5 rpm, I let off and the motor instantly dies. I start it back up, and yet it dies again the second I let my foot off the gas. I fire it one more time and I start noticing the exhaust (which was rarely colored to begin with) start getting colored and thicker. So I killed it there, and had it towed to a mechanic. The mechanic says their guess is that it blew through the rings since there is "dried oil" splattered on the firewall from the tube that comes from the exhaust.

So now the question is where can I find a full rebuild kit?