I just need to find the machinery to host it. If it costs, then so be it.
a few tips from the wise....
1. Don't try to run an email server on your home internet connection. It won't work. As for the reason why.... well, in a nutshell, you can thank your spamming brethren.
2. There are lots of people who will host mailing lists for you for little or no money. Quite why you'd want the hassle of maintaining your own is beyond me , particularly if you don't have a penchant for IT.
3. Mailing lists are so 1990. Just use a forum like everyone else.