Yikes. Are those ever . . . somethin'. I had to go back to re-read the description to be sure they weren't really women's boots, with all the buckles, chains and general "glam rocker" get-up. (hey, maybe they were custom made for Rod Stewart and are worth a mint.)
As for whether they're Weston's, I'd expect that they are, if only because (i) Weston makes some flamboyant shoes and boots upon special order (e.g., blue lizard skin), and (ii) who's ever heard of "fake" Weston's? In any case, I'd ask the seller to please take a picture of the label/marking to see what it looks like. Or, call Weston.