Dont be afraid to use used parts as long as they are good. i have an old Crane cam SSH-320-NC for example that I am thinking about using in mine. I cant get that cam any more and I did run it in an engine before so I know it works. You can measure the lobes for wear etc. basically check it and decide if you want to use it. I agree being budget minded is a good thing. I am working on my "spare engine" that has been sitting around "In parts" for years. I am finally going to at least get it together,and possibly swap it into my car . I do have an engine in it that runs currently and a 318 sitting there collecting dust.:) I need another car LOL