I wanted to thank everyone for their advice and document what I ended up doing.
As stated earlier, Trotec quoted $395 + tax + shipping on a replacement 2" lens for my Speedy 300.
I checked with II-VI and they will sell me the lens directly for $227. They are now made in the "Pacific Rim".
Bruce Sunderland at Design Research Optics was highly recommended by another source. I spoke with him and was very impressed. He makes all his products in the USA. I ended up purchasing a mounted lens from him for $125 that meets or exceeds all the specs of the OEM lens.
This is his website. https://www.designresearchoptics.com/
Thanks!
Joe