Hey, It would be nice If you can provide us with a tutorial of how to get into the whole witness game and how to setup on the VPS etc. I would definitely upvote again for content like that. I have seen articles about mining steem on windows 64bit PC but the VPS method sounds more practical. Thanks for this post though, I wasn't even aware of Privex VPS and that It can be done using a VPS.
PM @privex on Steemit Chat for Steem Witness Server - https://steemit.chat/direct/privex
Prices are on this Post - https://steemit.com/introduceyourself/@privex/we-are-privex-inc-we-accept-steem-protecting-your-privacy-in-the-cloud
This post if you follow it step-by-step 100% works -
https://steemit.com/steem/@someguy123/your-guide-to-setting-up-a-witness-server-steem-in-a-box-hf19
Caveat, you must use the Privex server because you are pulling repos from his server. Or at least I assume as much. I haven't tried above from another server. I have installed Witness using a Linode.com recently but it takes FOREVER because you don't have a bootstrap of the blockchain and a $40 server from linode only gives you half as much juice as a Privex $50 in hard drive space in memory. AWS would be even more expensive. I highly recommend Privex on many fronts.