Yes, there was an akaowners.org that was ran by jdev, and later an akaog.org that was ran by Ruler_Mark. Sadly both are gone now. Most of the active AKA folks can be found on here, the AKA subforum on PBN
, and on PBLegion
As far as any parts you're looking for, try contacting Destructive Customs
. They're now AKA's service center and have plenty of spare parts. Your best bet is to email them as they have quite a bit more than what's listed on their website.