Interesting but a tiny house is so much roomier than a tiny RV (with the loft space and all) I think you have to account for that in your head ;)
I've done this somewhat and have come to the careful realization that you can have a high quailty of life with a lot of stuff or you can have a low quality of life even after you sell it all off (the vultures of TV and internet can occupy you 24x7 if desired). A certain amount of willpower is still involved even if you create the perfect environment. But at least you don't need to maintain as much stuff.