my thoughts are dang. any story to sell a motorsickle. I had one of my rear wheel spoke nipples break. The spoke itself was fine. Scavenged a nipple off of a nos front wheel and I was riding again. I have no idea what caused the nipple to break. Fatigue I suppose. Now re your tale. 4 spokes missing is not acceptable. Sending your wheel off to Buchanan's Spoke & Rim, Inc is an excellent idea. They will fix it right up. And it will be higher quality spokes, nipples, and lacing tune than oem for sure. That is if your rim isn't fubar'ed already.
