You say you are a new truck driver but you also say you want numbers for being an owner operator. I hope you have not already signed on the dotted line- trucking is unlike any other profession (and I use the term loosely...). You really need to understand the business before you jump in and buy a truck- and in most cases, if you really understand the business, you WON'T jump in and buy a truck.
The problem with "numbers" is that there are so many variables. There are guys making $2+ per mile but running lower miles and guys making $.80 per mile and running their butts off (these are o/o numbers here). In my opinion, owner operators who settle for low pay and high miles are hurting themselves. The companies can afford to pay their company drivers high rates and still make profits but it doesn't add up to the rates they pay their o/o- I think the o/o are getting royally screwed by the companies as well as the rates.
Here is an article I highly recommend- nah- here's 3 articles. They are all a little different but they are worth looking into if you are thinking about buying a truck. These companies target new drivers who don't know any better- and it sounds like you may be a target.
Trucking Owner Operator Traps
Trucking Lease Purchase Scam
Tips for Buying a Truck
You will never be able to save $6,000 per month (IMO) if you buy a truck. If your goal is to save money- especially over the short term- you are MUCH wiser to stay a company driver with no truck hanging over your head.