Best practice for creating a Skype for Business Server 2015 test lab

Having just created our Azure account today I am looking to set up a Skype for Business test lab, so please tolerate this simple question :-)  To do this I need a WinSrv2012 VM (which I have created from the MS image OK) on which I need to install SfB 2015 (which I have as a local .ISO).  However before I can do that I need to create a separate DC that talks to my WinSrv2012 VM.  My two questions are:

1. What is best practice for the WinSrv and DC setup?
2. How do I install the SfB .iso file onto the WinSrv VM?  I presume I can map it to a CD drive, but given my dismal ADSL upload speed this might be impractical

Or instead of re-inventing the wheel has someone already done this?

Thanks

Nigel