Basic Frame

I am currently looking into different ways to get a basic rolling frame to build from.  I did find a couple of local motorcycle salvage sites,

http://www.midscyclesalvage.com/

http://www.motorcycle-recycle-center.com/

I am not really sure that is what I want to do though.  I may end up buying a bike from 

http://www.ebay.com 

Rolling frames go there for anywhere from $300+.

Another option that I am experimenting with is just purchasing one local from someone who has a bike with a blown motor. 

I am not sure which route I will go at this point, but my goal is to get a frame with from a 700cc to a 1200cc motor to use as a rolling frame.