#1
basicly wat the title says... i was just wondering whats the nut size for an rg so i can put the right size on it when i order an original floyd rose online.

i know the sizes are like R2 R3 R5 and R7 i think
#4
It can vary, but I believe the standard is the R2, which is the 1 11/16" w/ standard spacing if I remember the numbers right.