You can keep your LSS-1 connected to the LSS-1 module and active across ethernet. You will get a great image this way. Some say better than what you can get with an LSS-2 plugged directly into the touch. What ever you do don't buy the LSS-1 adapter and connect to the touch directly. The "adapter" is actually a filter. I doubt you will be satisfied with the image with this approach.

You will love the touch.

Gen 3s are coming out. I have seen a 9" but it was a R and D model used for testing. Pretty awesome. The 3s are much faster, brighter, better screen response, new touch programming, chirp, wifi, extra set of buttons for those glove days.

Good luck on your choice.