how can I build my own TeXLive Distribution scheme? I needed a special scheme for distributional reasons, which means to include only the packages needed and also for a better redistribution. To be more precise, we only use engines like lualatex, luatex and xelatex and their related packages. Also we use certain packages from different collections. It would nicer to build a scheme and not to install something "portable" and after that install different packages needed.
The simplest solution might be to just make an installation with everything you need in it and then zip it up and distribute that. For integration with the system on win32 (PATH, menu shortcuts, file associations) you can use w32client. You can even combine everything into a simple exe installer using 7zip or something similar, all depends on your needs and how much effort you're willing to put into this.