First off let say a couple of things
1 I am an instructor...no I don't charge anything to teach...if you find an instructor that wants to charge you find another instructor.....I said that so you will know my response is not driven by any monitary gain

2 You must learn to walk before you run

3. I truly understand your desire to fly a neat airplane such as a Cap

Ok with that said yes you can learn to fly on any airplane.....However it may take longer to get where you want to be going down the road you want to choose......

Flying is not like driving.....left, right fast slow is fun...however most crashes are caused by up down, especailly the down part.....that you don't have any experience with.....
the biggest part of learning to fly is muscle memory. You know how much stick movement equals that much airplane movement...and to see the attitude of the airplane.....most students will have a hard time some where in the pattern seeing the attitude of the airplane....it may not last more than a couple of flights but it will be there....

If you have a typical car transmitter with a pistol grip type...well that will be different as well...as now you fly with both thumbs......

Ok now my advice to you is to go to your local field ask lots of questions....perhaps get an instructor right then...but do get an instructor.....
find a good trainer airplane like the LT-40....and learn to walk.....you'll be surprised how much fun that is.....

You'll learn quicker and cheaper with an instructor and a good trainer than you will any other way....and increase your chances of success.

I truly wish you the best of luck and good flying