Yeah now that I look there is a lot more for WA parts and KWC does appear to be a clone of WA. Although I'm still not able to find the two parts I need, but maybe I can find a WA M92 mag which would get me most of the way there... I can hold the gun awkwardly and use it without the spring that is missing, but I'll keep looking. If anyone knows where I can order specific KWC or WA parts from I'd appreciate it, but from what I'm reading now it sounds like they are hard to come by.
I found what looks like the right part on ebay but the part numbers don't line up because its a WA part...
http://www.ebay.com/itm/No-77-WA-M92...item3f0e07d1f2
Not sure it's worth the $11 risk.