I have a slightly used Thump RRR Billet single bolt tensioner with 76mm pulley for sale.
PM-1001-76
Modified to fit underneath a vortech bracket with 6 rib belt by cutting barely 1/8" on the arm with a professional lathe.
It includes the longer bolt that is needed, as the one in the kit is never longer enough.
Price is $450 new.
Asking $300 obo. I'll take care of shipping.
PM me for faster response. Let's make a deal.