Hi Ray, you have a V6 transmission, and those need extra care, which the remote filter is great to have. Changing the fluid is ideal and flushing doesn't really help unless the old was neglected or had debris in it(yet not getting a rebuild).
I would install one of the available valve body kits, they do help the lifespan of the trans. Those were designed for the Mercon V in mind even if they may have had Mercon I to start with.
I'd also add a bigger cooler in front(or add one with the OEM unit(in parallel if possible)), and a larger pan. Adding capacity is not needed if the vehicle is babied, but for harder usage, the extra fluid will keep it cooler.