No he won't need a larger one. The 20-22 tons work good. 5.5-6.5 horse I think. 4x24. $1000
But loading a log splitter is hard. You have to lift the big un split. Or have a vertical / horizontal. -reread post you want that feature .
Mine is homemade but similar to a husky from TSC.
Just checked phone I don't have any pics- and loaned my splitter to my friend.
I think Northern tool has a nice selection. I like the Idea of a 4-way wedge. But my chunks are way to big for that to work.
I like bigger wheels that are road legal. I loan mine out and my church has a firewood ministry and uses it too.
So it gets around.
Would he have help? It's still a lot of work.