first of all, did you use the search button? because i have seen a lot of posts like this. plus, this is like the 5th time i asked this question ._. (not trying to be mean or anything. its just that not many people like to see questions that have been answered several times already)
2nd, i have a fox and i beat don at lvl 89, with messed up stats so i'm pretty sure you'll be fine with your lvl 93 fox.
just use shuriken master, sprint, LOTS of shurikens (or w.e you prefer) then just hit-and-run.
it doesnt take that long. the damage is little since don has like....5k hp?
but you just gotta have patience.
3rd, for the platform trick.....i dont know....i just hit then run until he stop chasing me then hit again ._.
i didn't use that much pots anyways, but bring lots of pots just in case!!!
finally, you'll probably died several time or none at all. depends on REAL LIFE PURE LUCK. but just have patience, you'll get there ^^.
good luck kicking don's butt :D

Credit to zomgangela (aisoyoko) for this beautiful sig :D