I have new sprocket blanks in 72t/#35 (no holes)...I machine the bore and mounting holes to whatever size/pattern is needed.
Can you accurately measure the bore and bolt pattern spacing on your sprocket?
If not, you could mail it to me in a USPS $5 flat rate envelope and I'll mail it back to you with a new sprocket.
I'd suggest you eliminate those large holes that cause the weaker sprocket to bend. They look cool, but significantly weaken the sprocket.