Let's be honest, the bed size doesn't matter either since the majority of the trucks you see on the road are carrying nothing more than a LARPing driver -- that's why they keep making them smaller and smaller.
But the numbers you pulled out of your ass weren't part of the criteria when you told us all it "wasn't possible".
Also, I absolutely adore the salty little down votes you give anyone who replies to your comment without agreeing with you, even when you demand a reply. It's like something a grumpy toddler would do.
Provide us with a photo of your truck at capacity.