SNI issue on shared IP with non-SSL sites

I noticed Google crawling a page by the wrong domain name. This is when I realized that if a site is contacted via HTTPS, which doesn't have SSL setup it will default to the first domain alphabetically that has SSL setup.

My idea now is to have a main shared IP for non-SNI sites and then a second shared IP for SNI sites.
Does this make sense as a good solution to my problem?

Thanks for your advice,

Justin