Small bolt vs. Big bolt

i have drums up front. I would like to have disc one day, just not alot of mula to through at it right now,plus im doing the /6 to v8 conversion right now and thats sucking alot of the funds for the car. my buddy brought this up last night while we were talking, " I thought you were gonna go to a big bolt" and I told him i wouldnt need to because I found the rims......So it just got me thinking about other issues i may have with this plan of attack.

So..... I guess from what im reading your suggestions would be to switch?
Sounds like in the long run i may save money by switching?