(sorry for not answering to a previous message, I just subscribed).
I think there should be a single option on the download page. The minimal HP seems OK to me, but I understand how not having control on the distribution of stack, while at the same time having to support it, could be a problem.
So here is my 2c:
* If at all possible, find a way to work with stack maintainers so that the HP stack install process matches that of the standalone tool.