If he can't find time take a look at one of my restoration thread on a pair of 4430s
http://www.audioheritage.org/vbullet...ight=audiobeer
If you like, I have 14 pairs of speakers I'm completing the finishing in June, your pair could be 15! on in June. You pull the drivers out and ship the cabinets to me. I THEN WILL FILM YOU A PROCEDURE for future references along with the the 4313Bs I am doing. Cost to you is to ship to me and back to you. PM me for exchange of phone numbers to get it going.
Here's another thread....
http://audioheritage.org/vbulletin/s...ghlight=raffle