I swapped out my SawStop fence for the Incra LS-TS fence about 15 months ago. I got the same 7-9 week delivery estimate, but it came in about 3 weeks.
Comparing the price of the Wixey and Incra is a little apples to oranges. One is a measuring device, the other is a complete fence system.
I kept all my Sawstop fence components, just in case, but at this point absolutely love the Incra LS-TS.
I have a router table in the right side of my table. With the positive stops, on the Incra guide rails, intakes 30 seconds to switch the fence from saw to router mode pr back.
Even with the ruler on my old SawStop rails, I still found myself getting a tape measure out and measuring between the blade and the fence, especially for fine adjustments. Now I use the cursor on the Incra Positioner and have complete confidence in its accuracy.
Would I buy it again, absolutely.