I am not a big SC fan, toooo slowwww. I cruse my MCR at around 138kn at 18.5lph (Mogas). In a year I get through about £1700 ish, an RV 180hp 33lph Avgas would be around £4700, but admittedly at 150kn. I am considering building an RV7 so I can do aerobatics and tour, but I run my MCR for £4200 a year all in and am agonising over the cost of running the RV.
Anybody considering a SC should checkout the link I posted (look at the numbers) and fly one on a bumpy day, alongside some VLA designs. The Wing loading is much lighter than some.
Rod1