You could try asking my luthier/amigo outside of Fort Worth, Texas (via a virtual request, no need to travel). He wired my Epi 1275 clone when he replaced all 4 pickups, the pots, etc. PM me for his email address.
I recently nailed a fabulous R9 from Marks Guitar Loft for about $3400. Outstanding custom shop reissue and priced well below the insane range.
Keep looking.
My take on P90's is
1) Gibson P90s are good if they are not ceramic
2) Anything ceramic in a guitar pickup is a pandemic spreader center
3) Boutique P90's range from good to really, mind-blowingly good.
4) only thing possibly better is a Zhangbucker Firebird pickup.
Man, remember the 2015 Gibson Les Paul JR SC's? I own 2 of them, a sunburst and a cherry. Both have had their robotuners replaced by old-school Klusons. I consider these to be among the best Gibson off-shoots.
Would I prefer to have a Lukas Nelson '56 SC? Sure, but not by much. (note the 'k')...
Understood. And I empathize ... like a huge mo' I sold my 1952 Les Paul (original, P90's, trapeze bridge, goldtop). If it were offered today at today's prices I would have to suffer the pain of passing on it. So, I get where you're coming from.
I just think that you're about to pay over $4K...