WordPress site on dedicated IP for better SEO result?

Hello,

I'm planning to start 10 Word Press based sites, each covering a keyword and purely unique content for authority rank. I'm thinking to host each website on a dedicated IP. I've asked some hosts about cost of a dedicated IP and it's around $2.5/month ($30/yr) and one of the host said I have to purchase separate hosting account as they won't assign an IP to a site running in multi-domain hosting panel (yes I understand how cPanel works).

So I'm now stuck with the following options...
1: host each website with a different hosting company which will give each site a separate IP but there would be thousands of other sites on same IP of course. So should I opt for this?
2: get a reseller account and host all sites under it giving each one a separate IP? But google will know that all these IPs are running on same network, so would this trick still work for site authority rank?
3: Own a VPS and manage all sites on the box?

Which option would you guys suggest?

I've done all three at one time. In fact I still have a reseller account with a ton of sites.

But for what you're talking about (essentially a private network) you should go with option one. There are a few reasons to do it this way, but that's the method I prefer these days.

Thanks @Lowbrow I'll be following the same strategy.