JBL N333 crossover for L300

I do have the original N333 units but If anyone has made new boards or have a better replacement for them i am looking to purchase replacements.
Has anyone kept the originals in place and liked the sound? since these units are from 1975 i imagine any dielectric caps will need to go..if all caps were film
type should not be a problem. any experts on the matter please chime in as im looking for idea's for which way to go on these cross overs.
enjoy! contact information: [email protected] or 425-513-9445 ask for Richard