the command set seems to be quite easy to implement in a INDI driver.
Do you have any programming experience?
Following some good tutorials and with the support from this community, you could give it a try
The commands seem quite simple, I could probably make a quick driver based on my USB_Dewpoint or Arduheater driver if you can compile and test it.
Edit: done, if you pull my fork from github.com/jpaana/indi.git and check out branch called lynx_astro and build it, there should be a new driver called indi_lynx_astro that hopefully does something with the device :) If / when it doesn't work quite perfectly, debug logs hopefully help me find why.