Parts help please

[p26575r16]

I am having a very difficult time trying to find a timing chain for my '86 350x. I have looked at rocky mountain, dennis kirk, and shadetree websites and cannot find one. Ebay has a new did chain for about $70. Is this a good price and good chain, or should I look elsewhere? Thanks

[p26575r16]

I should have added in my original post that I will be running a powroll race cam and heavier valve springs.

[jason 32]

stock is 112 from whittier fun center - mabe service honda is cheeper there 30% off stuff-