There are just "too many" Christian Universities. I went to Southeastern University (Lakeland, Fl) and there's just not a whole lot you can draw from even being a student there that I would want to donate money to such a venture.
I'm inclined myself to take a look at exceptions when it comes down to "full support". For me, at this time, financial support is "full support". Or qualified support when it is earmarked for a particular purpose or to expand access to something (like this site).
At SEU I heard reports of certain professors being "open theists". Granted this was from reformed students and I didn't personally have any classes with these professors, it still sort of hung there.
There are some christian Universities that seek a "well balanced" christian education. As a result, they bring in a lot of educators that may or may not be believers. An academician well versed in Theology does not a Christian make.
I'm not posting this to give an "anti-advertisement". Just pointing it out because there are tons of loosely "christian" schools out there. Is a deeper study of the Word accessible in such places? Sure.
Would the Harvard divinity school also be equipped for such a pursuit for a believer? It's possible.
The Lord can and will work wherever he wants. I felt led to go to that particular school and I'm still not certain of the reason.
If I felt led to give money to support Christian education, personally, I'd just pray for such a person to cross my path.
I have an uncle that has his own personal scholarship (I'd have to ask) that he gives to those pursuing degrees in Theology. The school doesn't matter but the focus does.
Getting to know a school well enough to support students I have no personal relationship with would be challenging. I went to a school for 3 years and don't feel like I know it at all, So I can't help you there. I like the missional element at a lot of places and would be inclined to have money available if someone fit strict criteria.
If I recall aright, there was a scholarship that the church I went to in high school had set up that was given out every year to one student. It makes sense that you could set something up along those lines and do some sort of interview with the student, or perhaps a written scholarship. There are tons of essay scholarships and being convinced something is the Lord's will is one of my biggest things and if a particular essay impressed me, then there ya go.
This was a bit scattered but if you'd like for me to a bit more concise I can endeavor to do so. The whole notion Theological academia just seems too "dusty" for hands on ministry. It has its place, I feel, but it's hard to pinpoint what/where exactly that is. Based off my experiences, I am inclined to question whether the majority of these "christian" institutions are what they appear.