I'm looking for opinions on replacing other parts while I have the pan out to change the gasket and filter?

This is the kit I'm looking at. I don't have any codes indicating any failures in the trans.

Image of the kit

Trans pan in question.

Transmission Governor Pressure EPC Solenoid Transducer Output Speed Sensor w/Filter Gasket

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Get one of the kits with the b/w heady duty governor solenoid. Aside from that, looks good.

 

I know im a bit late and presume thats a 46re?
I forgot which part this was but a small upgrade if you fully remove the valve body for full inspection and cleaning. (attached image)
Also they make stronger 3/4 accumulator springs that might be worth looking into also since they are prone to break and also an upgraded plate for that as well.
I did always get leaking from those rubber gaskets, infact i had better luck with fiber. Finally just replaced with mahle cork with metal core, worth the few extra bucks.
Make sure your pan isn't warped along with bolt holes not dented in, save you trouble in the long run with leaking and consider putting in your own drain plug.
You can take a socket just big enough for the bolt hole, put it in a vise, set pan bolt holes flat over socket and tap gently on top of pan rim over socket area. Works wonders with minimal effort, youtube video somewhere of such.