I tried for a couple weeks to find one for a s300 when I bought my 62 I had. Ended up having it machined to a hx40. Only ones I was able to find were for a s400.
That is a rip off. first check your local truck shops, these parts get replaced every day on semis. If you cant find the parts local check out interstateturbo.com, give them a call if you dont find what you are looking for on their web site. You should not have to spend much over 30.00 bucks for those parts.