In the past I have sold a bunch on ebay. Lowest about 30 dollars and highest was 212.00. I would always double box them but also add to my listing that models are fragile and buyer should be able to do minor repairs if needed. I never had problem. I used the model box itself as the first box and used bubble wrap around the model. I would then stuff some bubble wrap in one of those post office priority shoe boxes. Models always arrived in good condition.