Oh my god, there is so many solutions when it comes to details of 3d printing. Almost every module of the printer can be designed in many ways, some possibly better, other maybe worse…

It’s hard to make any choices, i feel that a lot of research into the topic will be necessary.

I have visited RepRap irc channel at freenode, guys in there answered many of my (probably annoying) questions, leaving me in even greater perplexity ^__^

Bowden or Wade? 1.75mm vs 3mm? Which stepper motors to choose?

Many thanks to a chap with nick Courious, he was very patient .) and it turned out we live in same country!