Your criteria for the attributes of your beschert are both admirable but somewhat inconsistent. At the same time, your own hashkafah seems to have some flexibility so you might extend that to the boy you consider marrying. You say he must be a full time learner and that his use of a smart phones are a non-starter, even with a filter. Yet, for practical reasons. Yet, for practical reasons, you yourself are comfortable going on to the internet to seek guidance on your own dating protocols. Perhaps just focus on finding a boy from ANY background who seems to share most, but not necessarily all of your midos and more importantly, appears to be genuinely interested in you as a person and building a life together.
Much hatzlacha in your search.