If you pull the spacebar off and show us the underside we can see if the Cherry G80-11800 style spacebar would fit. You could then mix and match some Cherry profile sets to get a full set. If not, you've got a hard search ahead of you unless you don't mind a mismatched spacebar (keep the original on and replace all the other caps only).
Show Image
(https://dl.dropboxusercontent.com/u/99587511/Daskeyboard/IMG_20141006_201508.jpg)
This board is really weird to me lol...
But I do enjoy blues.
Yup, looks like it'll fit nicely!
(http://img33.imageshack.us/img33/3534/1180011900.jpg)