Well all I want to say is I have never read so much rubbish in my life about New Zealand,I have travel the world lots and been to a lot of different countries, yes I am from nz so of cause I am bias. but you will not find 1 person living here that has come from another country that does not think it is a wonderful country in many many ways.It is one of the cleanest, greenest countries in the world.
Don't talk about money or cost here when you do not know what you are talking about, yes somethings are of caurse more costly here.but relevant to wages. to fix a tooth as someone said $70 maybe, but is your average wage of your country $780 a week, I don't think so. go out for a meal at a restaurant is the same price as Ukraine but your wages are not. it also has some of the nicest beaches and scenery in the world, that is a known fact read it anywhere. Anyway I just getting a point across, anyone looking at New Zealand as a place to come or visit, don't take too much notice of the crap written here.sorry but its true, no offense meant.
I have also been to Ukraine too 2 times, once for 6 weeks and the other 4 weeks,so I can compare as well.
to answer the question at hand it is relatively easy to get an an initial tourist visa to come here, then once here can be extended for 9 months I believe in which time other options can be apply for. the real problem for most is Ukraine government granting permission to travel.but you would know more about that than me

Cheers everyone Steve