"As with most conspiracy theories, isn't THE most important question here WHY?"*
God is not a conspiracy theory.
"Why would God give us all of this overwhelming evidence that the universe is more than 6000 years old if it isn't."
He didn't. Much of the evidence indicates the universe is young. For every dating method which says the earth is old, 10 more say it is too young for evolution to happen. Ultimately, God asks us to trust what He has told us in His word. If your husband comes home smelling like perfume and a few other evidences seem to indicate he might have had an affair, but he denies it, do you trust his Word or do you accept his explanation?
"Why would he make a fossil record that appears to date back millions of years.?"
"Appears" is the operative word. If you start with bad assumptions, you get bad results. As links I have posted indicate, those same dating methods can be explained to show that the earth is young.
"Why would he show us light from objects that appear to be billions of light years away?"
More bad assumptions. Adam was created mature. If you'd seen him on Day 7, he would be 1 day old but you might think he was in his 20s. God did not deceive us because He told us what He did in His Word.
"Why would he give us dating methods that seem so testable and reliable if they werent?"
The method of discovering the ratio of parent-to-daughter atoms is extremely accurate. But you get a number that from there is plugged into formula which contains unprovable assumptions about the past. Bad assumption, bad results.
"Why would we seem to fit so well with evolution if we don't?"
We don't. The genetic code specifically has all the hallmarks of having been designed for a purpose.
"Why would he make it look like dinosaurs died out before humans came to be around if they didn't (and what did happen to kill them all off that didn't affect humans)?"
It doesn't look like that. They are lower in the geologic column. That is all we know. Much evidence says they co-existed with humans including cave drawings, fossils and historical records. I believe they died out partly because the environment had changed dramatically after the global flood. That affected humans as well. Life spans dropped off drastically according to the genealogies in Genesis. Ultimately, I think they died off because humans were hunting them. I'm not invoking miracles here or suggesting anything other than natural processes and natural selection for their extinction.
"Aren't famine, flood, war, disease tragic accidents, evil in the world and the fact that God doesn't directly communicate with us all, enough of a test of faith?"
Why are those things a test of faith? Many people find faith in the face of adversity? You couldn't have courage if you didn't have fear. Besides, logically consistent atheists like Dawkins deny the very existence of evil.:
"The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, NO EVIL and no good, nothing but blind, pitiless indifference." [Emphasis mine]
- Richard Dawkins, River Out of Eden
So the problem of evil is more the atheist's problem than it is the theist's. The theist has a rational explanation for it. The atheist has to deny it exists and then acts logically-inconsistent when he complains about it. David Hume said, "You can't get an OUGHT from an IS." When you behave as if the world OUGHT to be different from the way it IS, you unintentionally assume God exists.