I work as a graphic designer , using the Mac as my main platform since 2012. I still have my Late 2011 Macbook Pro '15 running at full speed here and, as every year Apple's products get more and more expensive here in Brazil (currently a brand new Macbook costs the equivalent of a car), I doubt I'll be able to buy another one sooner hahaha. :D
Anyway, let me know if I can help test the Mac build. :)