basically i was thinking about putting the main monitor horizontally and both of the other vertically each side ( pretty much like this
https://gyazo.com/9ef047661f883a7da65e2a4e83485b56 ) and if i can do this with similar monitor it would be nice aswell
and i also dont care about rgb. the case can be really simple like pure white or pure black ( like NZXT - s340 (white) ATX mid tower for example ).
also i can definitly raise the budget if needed so i was thinking about a 1080ti aswell. currently my pc run on cooler and i like it so im probably gonna try to go that way.
also thanks you for your help :P