Sorry, but I don't understand anything.
How can I open a new biz account? What name/address should I use?
Should I buy a proxy and use it?
Well you should know the procedure, go to your bank and open a business account (this is the bank account that will be attached to your new Paypal)
When opening a business bank account you should use a PO Box, UPS Box or whatever is available that your bank will let you use to open the account with.
Use the same address you provided your bank with to open a Paypal account under your business name and business address.
NEVER use a proxy - EVER (a VPS is fine if you can find one in your state, do not use international IPs. Make it as close as possible to your location)
Don't want to deal with VPS ? restart your modem and generate a new IP.
IP isn't changing? Change your Internet's MAC address via router's control panel (192.168.1.1) Once MAC is changed, restart your router and VIOLA YOU HAVE A NEW IP!
Still not getting a new IP?
- dump your Internet Provider
- Buy a cheap Internet service (netzero, t-mobile) <--- you can change your IP in seconds
- Tethered your internet from your mobile phone
Is this all?
Do not forget to completely clean all cookies from your internet browsers (one way to avoid cleaning - create a new user in your windows machine)
What if I use a MAC OS?
Can't help you there.