Relative to what you have and might want to spend, sell the Trumpet, and as suggested look at a used Modwright 9X or Luxman EQ500.
I found one of these for $2500. Comparable, subjectively "better" in some areas but MIC, which to many here, claim to avoid😂
The latest price bump puts it at $4500. Make it in the USA, it would be priced much more$$
https://www.ebay.com/itm/157060441509
https://www.hifinews.com/content/primaluna-evo-100-tube-phono-preamplifier
Do the NOS tube thing, decent cable, now you have something that will approach $$ SOTA- as the Technics/Koetsu does.
I have no doubt the Trumpet performs well, but all the tweaking won't match any of the above "next step" models which are can be had for a sane price.