I wonder if the AT 80ED F/7 will be similar to the Lunt 80ED. My understanding is that the Lunt uses FK-61 glass as well?
I don't know the glass for the Lunt, but from using an Orion 110ED f/7 (probably made by Kunming?) with the equivalent of FPL-51, I would expect it to be a little short of visually apochromatic as compared to the Orion 80ED f/7.5 with FPL-53. Yes, I know that 110 at f/7 is going to be worse, but even stopping it down to ~90mm (~f/8.6) didn't eliminate the color although it did make it less obvious. Per my calcs that is about equivalent to what I would expect the AT 80ED to yield in the way of color, assuming both are well executed.
It still looks like a very good package and for an excellent price, but I would expect a small amount of color for my eye compared to the Orion 80ED (which I don't detect color in.) The AT's focuser is likely to be better, and it wouldn't surprise me if the figure was as good or better than the Orion 80ED. The extra baffling in the AT could provide some benefit as well. It would make for an interesting comparison.