I want to create a powered single bike wheel , wheelbarrow for hauling gear in the mountains. Would a hub drive be good enough cause its cheaper and wouldn't require a sprocket or chain. Probably plan on loading 150lbs on it just for power assistance going up hill or over logs ect.. thoughts ideas before I start buying parts. Hub wheel kits are around 200 dollars, mid drive are like 400 plus and still would need a battery too. Only need to get maybe 20-30 miles out of it and it would just be power assist mostly.