Regarding stab size, I am using a 229 cm2 for my 1900 cm2 wingfoil wing, works great, becomes very lively, but still easy to ride.
For my 1200 cm2 surf kitefoil wing, I use a 175 cm2 which is supersmall, but works fine for a lively wavekitehydrofoil, and a bit bigger also works.
So if you get a small stab like the S325 (221 cm2) I think you are all good
The S330 (217 cm2) is not sufficiently skatey with the winglets is my take, unless you like a stiffer feel where you drive in the turns.
S483 is quite big, 316 cm2 and really high aspect, could also work if you want to be on the safe side in terms of ease and stability, a tad on cost of turning and looseness, especially because the w1100 is a high aspect really big wing-wing, and does not turn that fast, but glides impressively.
In short: Yes you can easily use the same stab sizes for kitefoil and wingfoil is my experience
But if you want the wingfoil to be really easy and stable, a bigger stab will do wonders.