I'm not a know it all, but I lived in Thailand in the early 70's. Thai stick is not laced/dipped. It is small nugs, tied around a slice of bamboo, with bamboo thread (shaved from the cane). The potency varies from killer to indescribable... there are definitely different grades. The legendary stories most have told and heard have been based on the use of the commercial grades. One has to travel into remote areas and meet the ganga Drs to secure the "top of the heap" stuff.
Except for possibly the most southern parts of the US, the season is not long enough to allow the landrace Thai strains to finish outdoors before cold weather ends the season. Even along the Gulf Coast, the season gets cut a month or so short. Growing indoors is challenging because it takes as long as 20+ weeks to finish and it's hard to keep that strain under 10'-12' tall when it lives that long. It's not an easy strain to grow even if it was a quick finisher.
But, if you're up to the challenge, the Attitude carries landrace strains: Acapulco Gold, Colombian, Thai, etc. I think the name of the company is "World of Seeds".
As much as I love and miss Thai, it's not worth the trouble to me. If you would like to grow something that delivers a similar high and potency, look for strains that are high in THCV. Just go to The Attitude website and type in THCV in the search window. Higher levels of THCV is what separates the equatorial strains from the rest.