Currently level 99 and should be 100 today...

I hear lvl 700 Pvp gear is fine but is that the fastest way to gear fresh 100s to 700+ 5 man mixed party?
queue as party or individually?

Goal:
farm random heroic/normal dungeons for gold.. Nothing else.

Setup:
disc Priest
Perot pally
2 hunters Marks - BM is recommended I hear
which pets?
i also have an arcane Mage but I guess I should switch to another BM hunter?

Can an keyclone get the job done for heroics ?
No broadcast mouse currently. Should I be getting isboxer for dungeon farming?