I think the sprites fit very nicely as well, but if they're as glitchy as Cless says they are then I don't think it would be worth the time and energy needed to make 'em work.
Looking at the screenshots is fun, though

I think releasing a work half done is always better than not releasing it at all to be honest.
Someone else could always pick up hunting and fixing them after all (and they must have been ripped with Phantasian Production tools so that's a lot of work done already, years of it)