I am 49 years old and have been flying a AirCreation GTE912 UL with and IXess wing. I have about 300 hours of flying here in Colorado anywhere from 5000' to 15000' and from 10 degrees to 90 degrees. You must want the open cockpit feel. I do love it. You must be thinking that you can afford a nice trike if you are set on a SLSA. They are more expensive and require a certified mechanic to work on it which makes it more expensive to maintain. You can do some maint. on it but it is minor.
Almost any instructor will not put you in a trike to learn with a difficult wing. Learning was physically challenging for me .
The wing characteristics are really everything when in comes to learning. If you try to learn on a very fast wing( something the cruises at 75-80 MPH) takes a bit of an experienced touch to control well. A slower wing (single surface cruises from 40-50 MPH) is more forgiving on your inputs.
Engine selection is important. Some folks are hardcore 2 stroke. They are inexpensive and powerful. They also have a high fuel cost and must be rebuilt in a few hundred hours. The 4 strokes (Rotaxs) ( rebuild up to 2000 hrs) are way more expensive to purchase but I love mine. I have never had trouble while flying with it. My buddies that have automotive conversions or 2 strokes have all had engine outs while flying.
Tracy Tomlinson based at Meadowlake Airport in Colorado is a fantastic and dedicated instructor. Without his experience and encouragement I'd still be on the ground. The EAA will have a good listing of weight shift control instructors.
The EAA will also have a list of insurers to contact.
Hopefully you've gone for an introductory flight. I've heard that 3 axis pilots are a bit thrown off for awhile when first learning as none of your flight controls are with your feet( except throttle ).
By the way I thought that when I purchased a trike I could trailer it everytime I wanted tofly and would be able to avoid hangering cost. Big mistake, I lasted about a year of doing that. I've been in a hanger with 2 other trikes for a couple of years now. It was a ton of hassel and time when setting it up.
Keep us posted,