I am not sure I understand the question? Do you mean if I started a new char from scratch how long would it take to get powerful enough to buy / trade for 10 soj? All depends on luck. One etheral Titans would do it.

Or how long would it take my current characters to come up with 10 soj? Long enough to open my stash and count em out.

Or how long it would take to FIND 10 soj? Shit we will all be playing Diablo 7 by then lol.