All bars shapes and sizes come in both diameters, so there's no need for new brakes levers and such to switch to/from a drop.

However, to keep it easy, I'd look at an adjustable stem so that you can lower the current bars significantly and try many different positions it the matter of a few minutes.

Let me know if you need links to particular parts (I'm on mobile on the toilet and can sort it out later this morning.)