Emergencies, Part II

(con't from Part I)
The wedding is in 30 minutes. The bride and groom have asked you to play the organ for them. They said the church had a two manual organ with pedals.
You show up, and see this. A very fine instrument, but not exactly what you expected.
You panic. There are no pedal keys. All that wonderful organ music on 3 staves you've been practicing for weeks can't be performed.
You need a big sound, and you want your playing to sound written. And 2 hands have to do it all, cold turkey. You've got another emergency on your hands.
Now what.
Just then, you breathe a sigh of relief. You remember that you have some of those free scores from this web site with you.
And you learned them.
You're saved.