I've found this acrylic paints from an Ukraine Model Store (good and cheap supplier of eastern brands of kit at low prices).
They are Homa brands and can be found here: http://www.hobby.dn.ua/homa-homa-acrylic-matt-paints-c-217.html
I made a test order, invited by a super low price and found them not bad if not quite good.
I tested lots of matt colours as well as same metallic.
Applied with brush (I don't have airbrush) seems to flow very well, requiring little thinning I made with distilled water.
In a local forum someone said it's better thinning with vodka (yes!!!! he said really vodka....) but the colors seems to be water based rather than alchool based so I think maybe he was kidding....
Some of the bottles had pigments very addensed, requiring me to long mix in the bottle with a wood stick in order to regain paint; maybe dued to old stock of colors meybe not, anyway just an annoying and time consuming activity, not a real drawback considering the price.
The only real drawback is fidelity versus real colors, lacking any conversion table of corrispondence for German, American, Russian or other military standards.
I ordered also their specific retarder which really seems more a thinner than a retarder, but sure worth the price of the few bucks it costs.
They sell also pigments, putty and glue, all really low priced.
Anyone else experimented with these colors?