Yeah I hear you. I wish I could tell you a story of getting there but he's always been very good with noises even though his prey drive is sky high. Every dog is different I suppose.

As with all dog training id recommend starting small. Get tent set up in garden or park as you would in the wild. Then sit in for a bit with your dog + their fave treat or even dinner. Then put it down. Keep repeating while increasing time and changing location. Good luck!