At the worst case, you could replace your top. The lift and stand should be reusable. Note that the way you use the LS fence is 90 degrees to the long dimension of your top so it takes a little rethinking. If it were me, I'd try to add the outrigger extension. Maybe just use some scrap to try it out. Should be quick and cheap. A new top is pretty easy to make, I wouldn't buy a new one.
By the way, I'm sure you will love the LS. I got mine to mostly do joinery via templates but find myself using the microadjustment and repeatability a lot. Pretty much indispensable at this point.
Measure twice, cut once and CROSS OUT THE WRONG MARKS.