PA+PPD+PDD Resource | Elif vs Amber Book?

I took CE+PjM over the past two days, and now have PcM+PjM+CE out of the way. I'm switching gears and now outlining my study plan for PA+PPD+PDD. I'll go at PA first, and then PPD+PDD together (ideally, based on opinions read here).

Now it's just down to resources. I have Black Spectacles through work - it's fantastic in some respects and...lacking in others. To fill that gap, I'm considering either AmberBook or Elif's PA+PPD+PDD Bundle.

• Elif's PA+PPD+PDD Bundle | $105 (1-time cost) | I've read amazing things about what she's put together, and the price is right.
• AmberBook | $220 /month | If it weren't for the cost, this would be my choice. It's regarded as one of, if not the best resources. I'm also unsure of the value, since I already have 3 of the exams out of the way - and the content (based on what I understand) is geared toward studying for all 6 divisions simultaneously.

I'll be putting 100% of my time toward these final 3 exams - completing them ASAP is my top priority. So, realistically, how many months of a subscription would I be looking at for Amber Book? I fear potentially investing 4-6x as much $$$ into AmberBook as I otherwise would into Elif's bundle, for potentially the same result.

I apologize for the long-winded explanation - just hope to give a good idea of my situation.

So - what would you suggest? And what approach may have me completed more quickly?

I greatly appreciate any opinions!