I have just finished watching this movie (German VHS transfer) . Of course it's a joke to give it a "Django" title and it doesn't have any SW trademarks except for the "vengeance for a slaughtered family" plot, maybe.
Quote Thomas Weisser:
"A Royal Mounted Police officer rapes and kills Django's sister; obviously the notorious bounty hunter swears revenge. But it's a long and winding road that eventually puts Django in the middle of an Indian vs. Army war.
To say the least, it's all very anticlimactic."
Well, I would say "Mestizo/Mountains" is certainly worth a look, if you have the opportunity. It's not too bad for a B-Western ... but it's also certainly not worth hunting down.