there are locales that stay quite small. The caulkers for instance, are very cheap nowadays too. Carewise, are no different than MANY species ( Ball pythons, corns, bulls, other Locales of BCI)
Give em a shot. If you are wary about size, the research the island species of boa ( Hog Isles CAN get bigger, i dont consider them "Dwarfs" so much....)