@gyneguy225 before changing 3 things at once, why not just change the arm first, then maybe the cart and phono stage last. It sounds like you aren't comfortable with the ET2, so that's gotta be what goes first.
If budget is <$2K, Audiomods & Origin Live should be on your list. I am pretty happy w/Audiomods V w/silver loom & VTA tower on my Nova6, paired w/Dynavector XX2mk2. OL is the obvious alternative w/models both lower & higher in price.
If $2500 or more, a used SME V is what Sota recommends more often than anything else on Novas & Cosmos.
If >$3K works for you the Kuzmas, Triplanars should be on your list. Cheers,
Spencer