How about a set of stock Gibson pickups.
A set 490's
Or you could search up a set of T tops used.
Those sound good through a Vibrolux.
Anything much hotter than 7.8 k is going to be too much in a full archtop.
You can do 8.2 or so in the bridge if you need that sound ,because the location of the bridge pickup rolls off lots of the lows , but for a clean Jazz tone lower output works nicely.