Hi Nick,
dav35 is pretty much on point in these replies, but just wanted to confirm with an official response. We'll have you self-report your baseline score, which would be your score from the April 28 exam. We won't ask to see anything official unless you initiate the process to claim your guarantee after you've taken the test again, in which case you'll need both score reports.
The core work part of the program is possible in about a month, but you'll be working very hard. There are about 36 hours of classes in the core curriculum, plus another 40-50 hours worth of required homework assignments and quizzes in addition to the 6 tests (~18 hours). That's basically the bare minimum -- lots of other video lessons/assignments/quizzes to complete that aren't part of the guarantee, but still very helpful.
Good luck on your test in a few weeks -- hopefully you'll hit your goal and you won't even need to think about this stuff!
Jen