Small bolt vs. Big bolt

The reason i ask is because i just got on the order list for the small bolt crager ss and they are 168 ea. I have a 8 3/4 to go in and it has the small bolt pattern. If the main reason was the rims (wheels) then i would have that covered (my 2 choices for wheels would be cragers or ralleys) which i can get in both. The disc breaks is somthing i do want latter. So should i wait on the wheels and convert?