I believe that I need to establish a CMS database before I start adding other servers and clustering them. If I can do a custom install on one of my CMS servers without adding the Web Tier components and initializing a brand new CMS, then I'll be ok. I just not sure that I can do that.
As I'm sure you know, there are many different variables to consider when setting up a new system in relation to a company's specific environment. The server layout should be fine (and yes, I do realize the single point of failure by having one Application server - I hope to address that later). Our desired configuration was run by some SAP techs and they felt that in general the number of servers and the services running on them were ok.
Thanks for the input.