Yet another E-revo lipo question

Hey I've took a look at enerland based lipo and still have a little question left.

Neu 4900 25c E-revo and many other recommended don't sell anymore.
New neu 5000 30c are 31mm thick I don't know if they would fit. if they do, they are 160$ per pack.

At http://www.rclipos.com/RCL.html I can get PQ-5000XP-3S that would fit for 130$ per pack

Zippy-r are sold out too, seems I'm outta luck!

Zippy-h 20c have about 2v drop in a 3s pack at 20c from a video data test I saw, so I'm not that interrested in it.

What are the Mike lipo you guys told me about ?