This is what I use 100% consistent. Save STOTB until second to last turn, for potential Kunai with chain. Also try to leave Jar of greed with dimension gate on the field for few turns to counter stamping destruction. So far I'm 10/10 wins, spawns are rather slow... 7k-8k.
I assume you need to leave an open spell/trap space for the last turn right? What if he uses stamp to destroy your gate and then miyabi your wall? Or worse he uses stamp on your STOTB?
That's worst case scenario. I haven't ran into something like that yet. But of course, that would be a loss. But let's be honest, what are the chances? Also, set STOTB earlier along with some Jar of greeds, I have noticed that if you leave it for the second to last turn, he will stamp it if he has one available still.