I am a 50-year-old woman, in OK shape, but a bit overweight. I recently moved to Crestone, CO (altitude: ~8000 ft (still adjusting since I moved from Portland, OR)). I would like to use a bike for commuting (2-3 miles) and errands. Most of the roads here are dirt (sand and gravel), and there are also a lot of hills, and sometimes snow. I'm 5'8". I am willing to learn bike maintenance (and my husband knows the basics). So I think that what I need is a mountain-bike style eBike. I want something that is good quality but doesn't break the bank. Are there any bikes that you would recommend that are under $3000? I'm happy to buy used, also, from a reputable seller. I will probably also have to buy online, but might be able to go to Boulder (though I suspect bike prices might be inflated there). Thanks for your help!