Francis,
The DLE-30 is a very good engine with good power for its size and will do very well in your Cap 232. I have one in a ECROM Fokker D-VII with a DLE-30 in it using a Turnigy 19x8 prop and it flys very well. The Fokker weigh's 15lbs. Here is a video I hope you like.
https://www.youtube.com/watch?v=UyHyWDok9Ps