In cold weather I get around 8 to 9 miles max on hard gravel roads and almost flat ground. This is with a 2015 EV.
I would consider buying a good used one that needs new batteries. I would go on Amazon and buy the upgraded lithium battery packs from Voltronics. Install them and not have to add water and get 7 to 10 years out of them. Less weight and depending on what size battery packs you buy, you can get the same range as stock to doubling the range.
This is what I have planed when it becomes battery time. I plan on getting the middle upgrade which gives a little more range just to have in reserve.