I’d push for a hard R even if that means a drop in box office.

Essentially it goes like this:
Two guys ride into town, one white, the other asian. The town is one of those border towns (could be along the Mexican territory, or Indian frontier) similar to Deadwood, but 10 times worse. The town is actually made up of a diverse population of various races, indicating it happens after the Civil War. This also takes place at a time when magic is still “real”.

The two leads encounter a group of “bad fellows” who have no problem killing anyone and anything, and the leads are powerless to stop villains from killing a young Indian boy in front of his aged grandfather. The old Indian curses the own and its inhabitants saying they will not live to see morning.

Later that night, a huge thunderstorm boils up as we see a hand burst through a grave at the town’s Boot Hill. The dead have risen and their are going to kill everything in sight!

The town must then combat zombies (imagine every western stereotype) and each other in order to survive the night.

blah blah blah… throw in many kung-fu fights, a love interest for both leading men, the bad guys getting their just reward at the end, and the town being saved at the last minute by some powerful majiks, and you have gold Jerry, gold!

“The Good, the Dead, and the Shaolin” must be made.