I am a user of Amiga Forever since version #2 and currently use AF2005 almost everyday, but I am not sure I understand your question. Once installed on a Windows system, the Amiga emulation used in AF2005 should not be any different if it was installed from the "Online Edition" download or from the actual CD-ROM that was delivered with the two additional DVD's of video content, so I must assume that the first part of your statement really means that you want your "AmiKit" to work with the files installed on a Windows computer by AF2005.
Locating the AF2005 files can be done from the Windows OS or from the Amiga emulated OS from the Cmd Prompt or from an Amiga Shell (if that is how you want to find them instead of using a graphical interface, or as I assume you are writing a command script to execute in "AmiKit" that will run from Amiga OS after one has started AF2005)
I am not a user who has ever seen or used AIAB, but when I heard about your "AmiKit", my initial thought was that it would appear as a configuration choice in the WinUAE setup screen/window. Obviously I was not correct, but think about that as a possibility.
Another idea is to make a simple and complete installation CD-ROM with Amiga OS preference settings, background images, patches, hacks, etc. and added program content that installs and configures itself with a double click of its icon after you place your CD into a running Amiga emulation or real Amiga.
Could you please enlighten me as to what "AmiKit" is going to be and how it will work?
Thanks and sorry for the long reply.