So you want to have drop bars, but with the brakes on the flats? May i ask why? There relly is no need. Try out a drop bar bike with the brakes in the normal place. You will have no problem with then, and find that they are just as good, or better then where you want them.
Also, normally when you get out the saddle you will hold the hoods on the brakes to grip, and not the handlebar.
The good thing with road brake levers is that you can reach them from different hand positions, when your on the hoods and when your on the drops. With the brakes on the flats, you will only be able to reach them from the flats. You will end up riding on the flats more so then the need for drop bars pretty much goes.
You will also have to put the gear shifters on the bar ends i would think? You might find that annoying, and if you give a bike with STI shifters a ride, you will find the postioning of the brakes better and being able to change gear from the drops and the hoods makes it better.
You will get used to riding on the drops aswell, and when you are decending and need to brake and turn, having the brakes in reach from the drops is better and safer.
So basicly, you can do it, but i personally see it as being pointless. You will get used to the brakes and where they are, then will feel more confident using different hand positions on the bike.
Go test a bike with drop bars and you will find out how much better it will be then flats, and how the brake levers are positioned better.