Sorry to hear that.I wish I have one. Ferrets are know snake hunters. We got a couple of cobras getting lost in our backyard. 2 of my cats were bitten and died.
If you can try and get women ferret they are often more aggressive than males some of the time if you can try and get really angry jill she will destroy snakes in a fight such as I Youtube videos exist of jill or lady ferret she killed by himself a snake in like 10 seconds within 30 seconds whole ferret family eating the snake.
Having a ferret can actually scare off snakes since the ferret has a natural scent which is meant to tell snakes"Don't go near this area" since whenever snakes do ferret often kill or eat them.
You could get as well a Pine Martin or if any in your area live near by you plant out a food for the Pine martin for example chicken if you do the Pine Martin will come around your area if they see a snake go eat it Pine Martin kind of like stronger or tougher version of ferret kind of if you like the big brother version of ferret normally.
IF you get a proper giant ferret around 4 foot in length they are often very nice or polite so make normally bad hunters.
You could as well get Mongoose they can kill snakes very easy