I've eventually decided to go with a meier corda SWING.
I feel safer buying from a European maker (and a fine maker as I have heard), with a real 2 year warranty.
Hopefully I could send some report about it soon.
Actually, my brother heard it in a store in Hong Kong a year ago with the K701, and said it felt like a very good combo. So it is the closest thing I have for hearing this amp (or any amp at all) myself (AKA evidence from semi-first hand).
I like the fact that I buy from a reliable respected seller\manufacturer, with a real manufacturer warranty.
I live in Israel, which makes Europe more reachable in terms of shipping.
I wrote to Jan Meier, who said it's a very good match for my headphones (he actually said many of his customers like this combo very much).
He also said he considers it a transparent amp with good detail & soundstage.
I also heard that this is the best amp in the meier line in terms of price/performance.
You can write him too, to get some info yourself.