Wanted Cusco type rs LSD 166 L15 for the R230 Vg30dett

Looking to buy a new Cusco LSD 166 L15, for the R230. This is the 1.5 way clutch type RS differential. Shipping would be required as I'm in thr states. I've tried a few places (RHDJapan, Local Cusco suppliers) and they all said they are discontinued. But I've come across a few 2-way, new old stock and am hoping to find a 1.5 way.
Thanks,

 

Not sure if this would help at all. As I don't know differentials
https://www.nengun.com/cusco/lsd-type-rs

For the Z32 DETT " LSD 166 L2" 2way: available 1.5 or 2 way

 

Thanks for the reply. I reached out to them and they said they are NLA no longer available. I've found aome 2 way new old stock diffs but would love to find a 1.5 if possible. No one make parts for r230s anymore other than Quaife.