Camera Strap for Fujica GL690 Camera!

Hi there.
I purchased a Fujica GL690 (what a monster) camera and I am relearning lessons in using a large, manual 120mm film camera. Fun times!! However, this camera came without strap. It is a large camera (needs a strap) and I cannot find one anywhere. This camera has little grooved posts (not eyelets) so it needs a special strap connection. I did buy some replacement clips, but they are not the best (they slip off pretty easily) so I am looking for an original strap (or original clips??). Any ideas anyone?? Thanks!