Question about Costco Japan

Hello, we are moving to Japan in June. I want to buy some appliances and furniture at Costco and have them delivered. I know I need a Japanese Costco Membership to purchase online; however, I can't get it yet until I receive my ID and get to Japan. I want to go to the Japan Costco warehouse and ask them to deliver some of the appliances to my house. Will they have delivery service for appliances?

I will not own a car in Japan. How do people go to Costco without a car? Could I bring my big luggage and put stuff in it and bring back? Will they allow big luggage in Costco?

I am trying to plan to furnish the house before our families move in because we will be busy with school and work.

Thanks

by YumeYume7s