Funny you mention the se5, that's one of my last creations converted to e-flight, it flys well, I modified the wings, ditched the dihedral and went with brushless and lipo, I was barely able to stuff all of the gear into it.

I'm finishing up a guillow's 200% scale cessna 108 eflight build at present and I have the skyhawk kit that I plan upon building and converting to e-flight next. That kit is very impressive and it's set up by default with all of the control surfaces pre-planned and pre-die cut, so will make an excellent conversion.

The javelin, I also did 200% scale e-flight conversion, it flew well, be it, I didn't do enough modifications to it strength wise so it's in need of a decent amount of repair, not so much from flying it as much as my cat tried to use it as a climbing post.