With the Higher NZ dollar to the US the current stock (8 pairs) is available for $180 inc shipping per pair.
I have been advised that there has been increases in the cost of steel , shipping and manufacture ( great start to the new year) so once these are sold the price is likely to be $210 for the next run.

Also other ST items i have planned are on hold due to work load ( this is a hobbie not my job ) most new items won't now be looked at until june