I would like to get an e mtn bike but I need to be able to use panniers and need enough battery to get me 40mi with about 3500feet of climbing. I weigh 230. We have a Spec and Trek dealer as well as REI but that's it for bike shops. The hardtail trek has a smaller battery or I'd have it already. Any thoughts on something comparable to a Rail with a hard tail that would allow panniers and a rack?