You believe in God but are not accepting of the authoritarian creeds of any particular religion.
In a laissez-faire way, yes. In a technical, nit-picky way, I lean toward sense of acceptance in a few ways.
You believe that God's word is the universe (nature), not human-written holy books.
I believe 'revelation all the time' which includes human-written books. To me, Word is within and all around, but primarily within.
You like to reason or speculate what God might be like rather than be taught about it.
Like both, lean toward the former.
You think that religious ideas should reconcile with and not contradict science.
I like to think they could and/or do. Not big on "should" things, and is where authoritarian thing falls apart for me.
You believe God can be best found outside rather than inside a church building.
Hmm, I think God is best found inside me, rather than outside me. So is this juxtaposition from this statement? Perhaps not, but again feel it is both and outer place in the world matters between not at all, or very very little.
You enjoy the freedom of seeking spirituality on your own.
First one that is clearly a yes for me.
You are morally guided by ethics and conscience rather than by scriptures.
By both, though easily lean toward (divine, natural) conscience.
You are an individual thinker whose religious beliefs are not formed from tradition or authority.
Depends on how one understands "authority." This would be another one, on the surface, I am mostly yes.
You like to call yourself rational or spiritual before you call yourself religious.
2nd one that is clearly a yes for me.
You believe that religion and government (church and state) should be separate.
I believe "should" should be outlawed. After that, I think separating spirituality from politics is somewhere between impossible and implausible.