Amen and amen.
The debates are mostly for the moderators, not the candidates. And it is very rare that anybody gets any useful information from them.
There is an extremely useful and informative website
OnTheIssues.org - Candidates on the Issues
that gathers pretty much all the policy positions and statements from all national and some other prominent candidates. I allow that anybody can change their mind or position due to experience or new information so don't dwell much on stuff from years ago. But it is quite useful if you take the time to click on links to see what the candidates positions are or have been.
Your suggestion of a clear position paper on each issue from each candidate running would be excellent too. But generic statements like "we must invest in education" is meaningless. The position statements should be clear on what the candidate means by 'investing in education". How much? In what areas? What would be the definition of success? Plus I want to know how much federal meddling and policy the candidate thinks appropriate when it comes to public education.