Coursesaver + Kaplan for OAT?

Planning to study for the OAT over winter break this year. I have ordered the Kaplan Study Set with the book, two practice tests, and the QBank (for $90 it seemed like a steal tbh). I also plan to order the CourseSaver OAT Prep for one month so I can access Chad's videos and the practice questions. Would studying for about 1.5 months be reasonable?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: OAT Discussions Source Type: forums