crossover rebuild/retoration

Where are you located?

I am in Wichita KS. 67203

This got censored out of my last PM:   https://www.partsconnexion.com/film-capacitors.html

Here's the best I know of:
http://www.troelsgravesen.dk/Yamaha-NS1000.htm

Madisound is the premier xover designers on the planet, Not sure why you have not heard of Madisound? 
Go with Mundorf silver caps on the tweeter and Mundorf Resistors, the Ultra.

Mundorf --- BLEAH! :)

They add way too much color of their own.  They will transform the sound of the speaker to something else entirely.

Also, notice please that Troels doesn't just swap parts, he's completely re-analyzed the speaker to a much more modern and neutral sounding device.

Mundorf Silvergold EVO oil, the smaller brothers to the huge Supreme silvergold, are STUNNING, Clean, Clear, zero coloration, purity, dynamics, high fidelity,,Need I say more, ck my YT vids on Mundorf caps, 
In my YT uploads  you can actually see and hear how the Mundorfs EVO Oils sound in a  actual amp, cd player, pre amp.
Mundorf's take any stock component and raises it to a  whole new level of performance. 
Get rid of those cheap capped xovers and have Madisound employ all new M xovers.