A good transition plane from electric to glow would be the 4*40. You've already got some flying skill so a true trainer isn't needed.

The 4*40 is docile enough whent he control throws are reduced 30% that is can be used as a primary trainer. It is aerobatic enough that it could successfully compete at Sportsman or Intermediate Pattern.

Initially, build it by the instructions. Many people will recommend clipping the wings.. but its hard to put the extra span back on if you decide you need it. Use any .40 to .46 engine.

Use a LOW PITCH prop! Ideal with Magnum XL .40 is an APC 11X4. With a .46, if it has the ground clearance use the APC 12.25 X 3.75. (I used the .40 on mine and it was PLENTY of power) The reason people recommend clippng the wings is it loves to float on by the runway with the engine at idle... Using a 10X6, it can stay in the air almost indefinitely at idle The longer lower pitch prop improves vertical climb, and allows you to easilly do full-stop landings with the engine running.

Take-off tip... slowly advance the throttle. If you advance the throttle too fast, taildraggers tend to do a 90 deg turn on you.