No to both questions.
The MCAT is only for admission to medical school. Program director's could care less if you scored well in physical science, etc.
The LOR should come from someone that knows you as a med student. By far the most common letters come from those attendings whom you rotated with as a third/early fourth year student.
BTW I never put any board scores on my CV either. This type of info is usually submitted separately.
Sounds like you are either an incoming first year or rising second year. It is a good idea to think about what aspects of your CV is important to improve your chances for matching, as well as LOR. Extra curriculars, getting published, and awards are probably the only thing you can do to minimally help your matching success right now. Of course, the most important part is usmle step I score. You should worry about LOR's once you decide on a specialty, which for most is during third year. Good luck with everything.