I do long walks on rough trails to access some caves. Long = up to 1km or more
hp100s fit into backpacks fairly easily. If you don't have dedicated Sherpas you'll need to make two trips. For your scenario I would carry down each tank in a trip in my street clothes. Then a third trip for mask, fins, lead and possibly BC depending on the distance/temp. The suit up at the car in my drysuit and walk to the site. If its really hot out I would make a trip to drop off my drysuit at the water's edge then the last trip down with my BC. Potentially as many as 4 trips if I don't have anyone but myself to help.
hp100s fit into backpacks fairly easily. If you don't have dedicated Sherpas you'll need to make two trips. For your scenario I would carry down each tank in a trip in my street clothes. Then a third trip for mask, fins, lead and possibly BC depending on the distance/temp. The suit up at the car in my drysuit and walk to the site. If its really hot out I would make a trip to drop off my drysuit at the water's edge then the last trip down with my BC. Potentially as many as 4 trips if I don't have anyone but myself to help.