Big dick problems

I've bought 2 torsos, one with a depth of 6 inches which I realized too late was really uncomfortable and impossible to fuck. The next was the biggest I could see at the time on Amazon, 7.1 inches. Still not a great fit. I can get in there but it's a struggle even with lube and I still bottom out. After searching wm doll and some other sites, it's crazy how shallow the depths are even for the largest models. I can't be the first hung guy to want a doll. What the hell is going on. It's like I am being forced to interact with real women for lack of artificial options. I need a minimum depth of 8 inches. Why is that so hard to find??