If money isn't a problem, then yes, get an electric and fly it as often as you can. A slow sitck is good, simple, and easy to fix.

Hook the rudder up to the aileron stick, and it will be a lot like flying with ailerons anyway.

The more stick time you can get on anything you can fly will help with things like the left-right reversal thing, and help you develop the depth perception to help on landings.

So I'd say go for it.