Questions before I order my live rock

[trilinearmipmap]

Once I have all the pieces for my new 120 I plan to order the live rock probably 140 pounds. Questions:

1. My plan was uncured live rock to increase biodiversity and cure it in the tank, does this make sense, or is it just as good to go with cured live rock?

2. I was looking at J&L's Kanai live rock, other options included a small LFS offered to sell me "premium Fiji" LR which is a bit of an unknown from them, or other suppliers that sell LR. I figured J&L because more people seem to have experience with their rock so it is a bit of a known entity. Any advice on suppliers? Or does every store get their LR from the same importer anyway?