I think that you are spending too much on the kettle. You have pots and a stove don't you?
Also, skip the dripper and go with a french press. They are cheap at Marshall's (I am frugal, but NOT cheap)
I like the grinder that JJ recommended. I am getting one myself.
If your water changes taste in the summer, sounds like you have well water. Definitely get a filtration system. You don't want to end up with this:
https://www.cdc.gov/parasites/strongyloides/gen_info/faqs.html
Spend the real money on the beans