@veggiebun. Schweser Essential Package should work for you. Except that you may want to adjust your study approach (i.e. treat L2 as a different beast than L1).
Besides the vignette style of the questions, a large part of the exam is about comprehension (filter the inputs) and attentive to details (collect the relevant data). This is why even the CFAI text is long and not as distilled as the 3rd party solution, you should invest enough time in the CFAI text to make sure you are comfortable with the CFAI’s style and languages. i.e. when CFAI says X on the exam, you understand it as X not Y.
Memory retention would be another issue you need to work on. As the amount of materials in L2 are at least 1.5x of L1. (My personal guess is, if you really want to cover as many blind spots as possible, the amount is closer to 2.0x. This is also partially due to the “kitchen sink” status of L2, since it got sandwiched by both L1 and L3.) So be prepared to allocate extra time for iteration on the materials. (I would recommend three passes, YMMV.)
Last year, there were a few new topics in the curriculum (e.g. emerging market in Equity, private equity in AI and taxes in PM) that are ridiculously long but testable. So operating under the 3/6 hours schedule may have some problems with these topics (because you do not have access to several 6 hours consecutive blocks). If these types of topic still present in this year’s curriculum (I heard taxes in PM were taken off), my advise would be to take the materials slowly and take notes on the side. You may end up taking two weeks to cover your first pass, but the subsequent passes would hopefully be shorter (again, YMMV).