Hey everyone....i'm thinking to change the pickups of my guitar, i was searching to know what exactly the pickups are and i'm kinda intrested in "Alnico V"....now i know that i have to change the pickups....but i'm not sure if its the right one to replace with....can anyone suggest any good humbucker pickup for rock style, and also the website where i can buy it from....and does all the pickups have standard size...? and does it comes in pair??...and offcourse is it easy to install??

Regards