Best price 8000 groupset

My Wilier is 6700 and shifts fine have it dialed in but it does require patience at first to get it correct. My 6800 on the other bike is smooth as butter much easier cannot imagine much better. So might upgrade. Is the 8000
as good as 6800? I can use the same 6700 crank I think it will shift no different. So what’s the best price anyone has seen?

Possibly tell me i crazy since the 6700 really does not miss shifts and I don’t necessarily need 11 speeds. It would make the wheels interchangeable. The wheels already are 11 speed i just use spacer for 10. I will take any and all opinions.