Fork Boot/Dust Cover/Gaitors

Hi can anyone recommend a good place to buy a new set of fork boot? Mine are cracked and need replacing. I was thinking about getting this pair here . It says one size fits most, have you guys had to worry about aftermarket fork boots not fitting? I have a 1983 KZ750-N2. These are my current fork boots.

Could inquire at Z1Enterprises for "unlisted parts" or reference to possible source.

Phone: 315 926-5054

Good Fortune!