I predict you'll do well with R/C. Anyone currently flying a trainer and considering building a trainer as a good first kit shows a great deal of patience and forthought.

There are a lot of good "simple" kits, and there are lots of good choices for you. What you'll enjoy is as much a matter of personal taste as anything. As far as good builds that fly well and would make a good second plane. I know many experienced "old timers" who build kits like Sig Kadets just because they enjoy building them and like to have a easy flying bird around. Always nice and great for winter and water ski and float flies.

I would recommend the Goldberg Falcon III. It's a straight forward build. Can be built as a tail dragger if you want a little extra interest, and flys well. It's a little better performing than a very basic trainer but still very forgiving and predictable. Put a .46 in it and it is peppy, too.

I'll give you two others that would be good considerations. The Sig Mid-Star and the Great Planes Easy Sport.

But there is nothing at all wrong with building a LT-40 or Sig Kadet. It's just that then you'll have two planes of similar design and flight envelopes, and that's kind of . . . boring.