Francis, as others said, I think there is some confusion shown in your OP regarding D1 academic standards. They run the gammut just as other divisions do.
There's one thing I don't see mentioned here that may be helpful. You mentioned learning disability... I think what would be critical is to match the student to a school that has a good program for helping with whatever the specific type of disability may be or at least provide sufficient tutor options that may be capable of helping. In my experience, this is more difficult at Big State U. They may have personnel on staff but getting access to these types of things tends to be much more difficult in those settings.
Also already mentioned but there are plenty of NAIA's that have decent baseball programs, don't have stringent academic entry hurdles, are smaller and better at offering tutoring than Big State U and also have baseball money.