ISDT is the holy grail, but if you find one you’re gonna pay.
They imported the “Scrambler America” and the “Sport America”. More common.
My scrambler in its latest iteration. Have done 2 Giros with it. Bought it from Mark Etheridge with 380 original miles. The original tires date coded 1967 are hanging on my garage wall. 8-10 HP, and fun as hell to ride.