Good point about the pole because in this case just getting another 9mm pole may not work all that well.
The original front pole was a DAC reverse combi , designed to have a wider radius in the middle .
Looking at the photos I can't tell the difference (that is it appears to me that a standard 9mm pole would do that shape) but maybe not.
I don't know of anyone that sells those poles.

But before trying to get that pole I suggest examining the fly very carefully because some batches delaminated, cracked or became sticky after a few years.