Find a Cox Conquest .15.

It will out perform all engines on your list. I put one on a 2lb 4oz SPAD gnat with the Master Airscrew 8x3 and it had unlimited vertical, and flew right out of my hand without a toss.

They might outlaw it after you get one. I wish I could remember the source, but they were on sale recently somewhere for about $65

RJL / Mecoa is out of them, and I don't believe they will be having more made.

Do a search for Conquest and I'm sure you will find the link you are looking for.