2 country multilanguage site

[PiTRiS]

Hello,

I'm trying to create a site, where there are 2 countries (different content), each with 2 languages (native on and english).
So basically I need a 4 language site, where 2 of the languages are english.

I tried using i18n plugin, which is basically useless fro translating pages. I cannot make 2 English versions. Also i cannot make translation of pages, as i need to have localized urls (same page in Czech will have different URL than the English one).

I'd like to make the urls something like this:

site.com/cs/en/name-of-the-czech-page-in-english
site.com/cs/cz/name-of-the-czech-page-in-czech

site.com/sk/en/name-of-the-slovak-page-in-english
site.com/sk/sk/name-of-the-slovak-page-in-slovak

also something like /cs-en/name-of-page could work, but i could not get i18n plugin to work with 5 letter "language" codes to work. Actually it would be sufficient solution.

Any help/direction is appreciated

Thank you