Scot,
First, congratulations on getting your Sport Pilot Certificate!
I started earned my SPL three years ago at the age of 52. I own a 2010 Jabiru J230-SP and other than my plane, my experience is limited to ten hours in a Diamond DA-40F when I began flight training.
As far as finding an LSA that you can "fit into," you don't say whether the problem is leg room, hip room, or headroom... and the CTLS is roomier than a lot of LSAs.
Some thoughts... A lot of the modern LSAs are roomier than popular GA planes. If we're talking hip room, which is usually the concern, my Jabiru has 44". The current edition of the regular Zenith 750 (STOL or Cruzer) has only 42"... but if you get the optional bubble doors that goes up to 50". The Bristell is wider still at 50.4". And the RANS S-7S may be effectively wider still with 30" inches of cabin width and tandem seating.