Hello, have Opencart based online shop. I want add up to 100 000 products. and 3000 menus/submenus. Can someone recommend fast VPS for me? (and is there any example website) Is Hostnamaste.com reliable vps host? Others? I have search many offers, but i don't know which one is best.

I'd draw your attention to VPS deals from time-tested company - inet.ws.
24/7 support works, very satisfied, stable connection, uptime 99.9%.

If you have a problem, they will be there to help you. I highly recommend Hostnamaste.com web host. I plan on being with them a long time. The goal is to provide quality infrastructure hosting in world-class data facilities, at a cost accessible to enterprises, small businesses, and end-users alike.