An important question to ask is why do you have overdraft of $10K?
Given your spelling of some words I don't think you are in the US. Typically here in the US, we don't have that kind of limit on overdraft so it is a bit shocking.
Are the events that caused you to go 10K overdraft likely to reoccur? What is your overdraft limit? Again, here in the US there is often a fee per occurrence, and even it is low you might want to keep some money in your account to prevent overdraft from happening first. For example you may want to keep 1000 in your checking, and consider that 0.
Paying off the highest interest rate first is not as effective as one might think. In your example, you are talking about 6 months. Paying off one before the other saves you in the tens of dollars, not really a big deal.
In my opinion, it is more important that you stick to your plan. There will be temptations and distractions that will cause you to spend some of that 3K/month on stuff rather then debt reduction. A date with a pretty girl, a new ultra high def tv, tickets to a sporting match, etc... run a far greater risk than saving less than a $100 on interest.
For some it is better to start with the lowest debt first. Seeing that go away, is encouraging and gives you the strength and desire to carry on to the next debt. For others it might be paying off a hated debt first, or even saving it for last.
Some debts have special incentives. For example a student loan that I had would pay off the last $500 if you were on time with your payments. I paid that one off first, because it help "slingshot" my debt payment program. It was neither the smallest, most hated, or highest interest rate. The month that I got the balance below $500, it was like I had an extra payment that month, very encouraging.
So I would recommend the CC as you will see the result sooner. Luckily it is also the highest balance.
The most important part of all this is to stop borrowing.