Well~ I think if you cannot go to restaurant, you may ask to owner of the restaurant. They may send you by post office. Or if you want just general gimchi you can go to Korean groccery shop for it

Yes. However, there are a lot of mosquitoes because of poor garden care.

Yes free parking in the back

No

It can be for anyone. There are specified areas in the restaurant for large groups and parties and solo diners or regular diners. If you are hosting a party, they would seat you in a more private area. If you are a dining solo or regular dining, you would be seated near the entrance.