Last weekend my FA 50 1.4 quit focusing

It was odd, I had used it the day before and it was fine, took it out the next day, wouldn't focus. Put it on a different body, nothing. It's my go to lens right now during my busy season doing family and Senior portraits (I'm learning to love my 50 - 135 while my 50 is down) But I'm curious if it's worth fixing. I have an e mail in to CRIS and Eric from the pentax repair site but when I put in for a quote from CRIS I got a message saying that some of the parts for this lens may not be available. I'm curious if anyone has had any experience with having a 50 1/4 fixed? Is it possible? Or should I just buy a new one, since they are only $399?
I am anxious to hear back from both sites regarding this, but wanted to ask here hoping someone will say they've had one repaired recently no problem!
I think I can make it through my busy time with what I have and then replace the 50 in the Spring before next busy season starts. I'd rather not spend the $ right now right before the Holidays. But I feel lost without it!