I am debating on if I want to have you install jms or to do it myself. My question is if I try to do it myself and I do it wrong and just want to start over fresh and have you do it will that void my install of JMS?

JMS including the latest JMS 1.3 represent more than 2 years of full time development.
So if you think that you can do it yourself with a lower price, you can do it.

I am not trying to say I want to create my own software. You have done an amazing job and have created something really useful. I am saying if I try to install and can't get it to work properly and just mess up my whole site can I just by the hour support and have you install/Fix my site using the license I bought. I just don't want to have to buy it twice

If you want that we install JMS on your environment and perform tests to verifying that it is working as expected, in general, this require 3hours.
If you have a specific environment with permission issue or MySQL privileges issue, this may require more time.

A basic setup consists in:
- installation of joomla (generally on a confidential domain or subdomain)
- Installation of JMS to create the master website
- Creation of 2 or 3 slaves sites to verify the symbolic links and the DB sharing.

The setup is done with the customer online and sharing our desktop.
So we can teach you in the same time for your specific environment or constrain and we explain why we setup the environment like that for you case.
We use skype for the chat and phone and the free www.teamviewer.com application to share our desktop during the support session.
The billable support can be ordered at
www.jms2win.com/en/joomla-multisite?page...35&category_id=1