Marlin Guide Gun in 45-70, and a Smith& Wesson 686 with a 6" barrel. I'd want both 357 and 38 rounds for the 686 along with a couple dozen rat shot rounds. An Eese 5 knife would be helpful too.
The early bird may get the worm, but, the second rat, gets the cheese.
"A fear of weapons, is a sign of retarded sexual and emotional maturity." Sigmund Freud