Every situation is different and you should definitely contact the owners directly to discuss. However, if you have moderate mobility issues, you could request the first dome in the row, so that you don't have to walk as far down the gravel path. There are luggage carts to help relay your bags (see photo below). The photo below is taken from the parking area, so it is necessary to walk up the path before turning to the right to approach the domes (along a gravel path).