Yes... version one had a one piece wing, whereas version two has wing halves.

Version 2 is I think a little lighter and there are videos of it flying quite well with a Zenoah G-20 and a DLE-20 is more powerful so you'd be fine.

I've a version 1 that has been rebuilt several times and is on the heavy side and am flying it with a Zenoah G-23, probably no more powerful or less so than the DLE-20.

Nail down which version and someone should be able to provide the measurement. When rebuilding mine, I used parts from the newer version but doing so requires a total new front end build.