> Think automatic spanking paddle for example.
Sounds great! :-P
It's your dream game, you slept with this idea for weeks/months. However I'm just a stranger, first time hearing about it. Everything I imagine will differ from what happens in your mind. And I have no personal connection to it. So don't give up! Think more about it, think about what will make it unique and (!) think about how you can simplify it. It's always better to have a small finished game than a 10%-done MMORPG in your table. More than that: sometimes good game doesn't require many features. You can even try to implement the magic shop in rpgm with only dialogs and animations (TBH it might be even more playable than a full interactive thing). Or maybe try something else first, get some experience and polish your idea during that time.