The chorale prelude Nun freut euch, Gottes Kinder has the same registration prescription as Komm heiliger Geist, Herre Gott I uploaded yesterday: Fagott 16', Quintadeen 8' and Principal 4'.
But since I recorded that piece I got my copy of the Transept organ of the Laurenskers in Rotterdam. That organ has on the third manual a Regaal 16'. Still not a Fagott 16', but we're getting closer. However, there is no Quintadeen 8', but there is a Quintadena 4'. I used that in combination with the Praestant 8'.
Still not the intended sound by Kauffmann, but a nice attempt anyway.