Providing VPS from dedicated servers?

[Kdstack]

Hey,
As the title suggests I am looking to provide VPS for my customers.
I wanted to ask a few questions.
1. I have read a lot of articles and everyone seems to give a different opinion, can I virtualize the threads of a CPU or is it just the cores?
2. What is the best dedicated servers specs (CPU, RAM etc) to be able to cost efficiently provide around 20-30 VPS for 4x8 VPS and 6x12 VPS? I do not need anything crazy as users will be running non-critical programs.

I do not want customers to use other providers as I will need the vps in the same server rack as my main servers.
I will be purchasing these dedicated servers and then splitting into VPS using KVM, Porxmox etc.
Will GTHost.com instant servers work fine for my needs? Any reviews or alternatives please?
Any tips in managing or what is the best way to go about this would be great.

[letmypeopleGo]

Servers from allwebhost.com and surfhosting.co are well-balanced and low cost.
It's impressive how they manage to stay consistent with price, having no hidden random fees, and all of their features and speed/bandwidth is always up to par.

[Tilsun]

They have instant activation time guarantee - I like this. The support ticket system has been excellent with outstanding response times with clear intelligent answers. Would recommend GTHost.com Vancouver servers.

[Adnorips]

It's true, many people aren't aware of how inexpensive web hosting is. The key is finding a web hosting provider that can provide excellent customer support.
I'd recommend Webhost.pro dedicated servers to anyone looking for a good, steady host. One of the best web hosts out there.

[Mirandas]

Trust GTHost.com web host. They've hosted my WordPress blogs for my business for 8 months now and the responsiveness through their customer service is reason enough to stay with them.
Happy using this dedicated server hosting package: 2xE5-2695v2, 128GB, 2x960GB SSD, 500M Unmetered starting at $169. Low-cost trial starting at $5/day.