What I was getting at was ,,I think they are hard to find in general electronics,The only one I found that was retrievable was in a Darlington pair in an old RF modulator, out of a Samsung Cable converter box, one was epoxied to heck, I salvaged one.
I hope you get this circuit working ,
I used a flickering tea light led on a tube to look like a candle ,with a 7-segment display with my daughter's age lit up,and gave it too her for her birthday..really took the show amongst the kids..
I use this site to cross reference my transistors ,works in general and more often than not the data sheet is their to to a comparison..