I'm not limiting myself to only a SP, there's simply not an overwhelming advantage to getting a PPL at this time, and based on the shake out of MOSAIC, I may never need one. I have no desire for most GA gas guzzlers. My priorities are safety, speed, modern avionics and bottom line economics. Right now that looks like a VL-3 915is. Pound for pound the 916is is formidable power plant as well.I know you've said you're not interested, but if I were a man of your resources and capabilities, I'd feel silly limiting myself to Sport Pilot. Seems rather lowly for a Type-A high-achiever. You've already got 150 hours and surely considerable skills. It wouldn't take you long to get your PPL. The cost difference between buying and renting for that would likely be trivial and allow you to experience multiple aircraft before committing.