I understand, from a post at another forum, that it was released on VHS briefly in Spain and Italy. It was also broadcast in the Pennsylvania, USA area a number of times in its English dub back in the 1970s. And then there's this:
Forgot to mention - French version "Pour un dollar d’amour" is a completely different "erotic version" of the film, with new scenes, re-edited by Eurociné and released, as far as I know, in French language only. Sadly, this is the only version I have been able to find. If anyone's got a copy of Italian, English or Spanish versions I'd be very interested in trade. Spanish tape release does exist, but it's very rare these days.
Not much to go on, I'm afraid.