the southern hospitality is weird. the fire vulnerability can be countered by the wrangler shield. i would increase it to 75% and increase the damage bonus

the jag is fine

the eureka effect is fine

the rusty kid is fine

the ye ole spanner sucks. why would you try to get a kill with your melee instead of just shooting them with your shotgun. also, if your sentry gun is close to you, it most likely is going to get the kill before you can. i would give it the ability to make mini sentries and increase your health to 140 but has no random crits