E1 9.1 test install on a single machine

Hi, We have production installation of 8.12/8.98 with separate server for each role.

Now our requirement is to get full fledged test install of 9.1 onto one Windows 2008 R2 64 bit machine. At this point, we can not affoard to have more than one machine. I have learned that it is possible but some conflicts need to be resolved. Don't know what are those conflicts. During my CNC training with Oracle, they also had the single machine with everything installed. I also would like our server to be setup with Deployment, Application, and HTML/Web server onto the same machine (including the database as well).

I would appreciate if someone have this kind of installation and what are the things needs to be checked.
Note: I am familiar with Demo server installation and this is not our requirement as the Demo installation is very limited.

Thanks very much

disclaimer: I'm a developer, not a CNC/archititect expert

Create a VM on your 2008 server (I use Virtual Box) and install the Deployment server on it.

Setup the 2008 Server as your DB Server, Enterprise Server and Web App server.