I'm not really sure what you mean by cashout then... those 45 and 90 man SNG will allow you to use your ticket and get cash if you place. You're just looking for a way to use the step 3 ticket to get cash without having to ascend the steps ladder, right? Are you looking for a tournament with a more flat payout structure?
EDIT: SORRY! Nevermind, I googled and saw there is an actual "cashout" tourney structure that allows "premature cashulation". I guess FTP eliminated these as well as the SNG Matrix ones. That's really too bad.
--- probably disregard below this line, but for anyone interested ----
Here's another tourney you can get cash by entering with a step 3 ticket: $32,000 guarantee ID 211746049
There are also some Rush On-Demand tourneys you can use the $24+2 ticket for.
There's also MiniFTOPS Event #44 which you can enter into with a step 3 ticket. It doesn't start until March though. Tourney ID: 209630746.