Virtual Server pricing plans

Ay,

I'm preparing to relaunch a self service Windows VPS rental with several VPS plans but I want to ask you which prices sounds ok for you. Here are my VPS plans :

• 2 vCPU - 4GB - 40GB SSD
• 2 vCPU - 8GB - 80GB SSD
• 4 vCPU - 16GB - 160GB SSD
• 8 vCPU - 32GB - 240GB SSD

Paid Addons :

• Full automatic backups with 7 days retention
• Additional SSD storage
• Additional IP

What is delivered :

• Turnkey Windows Server 2012 with Desktop (RDP access)
• Bandwidth up to 500 mb/s
• Homemade support by me (help installing tools, advices, ...)

I don't put prices here to not influence your judgment (I'm already selling these plans but I maybe want to review my prices up).

If you can take some minutes to say me what prices would look correct for you, as a end user, I would be happy.

Thanks for your help !