Holinger engineering - 0397617964
Talk to Leigh or Wes.
$22,400 for a new box, 12 - 14 weeks. They have casings ready to go. Sometimes may take up to 9 months depending on whether parts are in stock...
The quality of Holinger is far superior to any of the above.
I have seen a fair few OS88 boxes break. Trust and HKS are not cheap to fix due to their age, hard to source parts.
PPG well some like them, and those who break them obviously dont...