A perfect transitional plane for you would be the Thunder Tiger Tiger Stick .40:



It's a very easy to assemble ARF that comes with tail dragger gear (but the instructions include how to set it up with tricycle gear, too). It is very aerobatic but can be slowed down and landed as easily as your Avistar. It's also very reasonably priced in the $99 to $109 range:

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This is a great flying ARF that makes a wonderful second airplane and a great first tail-dragger.

Good luck and good shopping!