[Trying to identify Sundown sub to order correct recone kit]

I cut out the cone and found out the black spider is 4 layers. Has a plastic venting ring.

 

[Trying to identify Sundown sub to order correct recone kit]

A friend wants me to recone his Sundown 10" sub but we can't figure out what model/version it is so we can order the correct recone kit. I've sent 2 emails to Sundown and also a email to directronix for help but so far no response. I don't want to guess and end up with the wrong recone and have to send it back. I've included some pics before the sub was stripped down. Really hope someone can help.