I'm getting small items from Performance Nissan soon, which could be included in your box. I've done it before with my spoiler, basically divide the shipping proportionately with the other people's spend, hence saving money. At the time I did advance the money for the other items and got it back from the members that bought the items to go in my box.
My expense would amount to about $380 but the items are well small... I'll have to see what they quote me for shipping
Captint could help with shipping too possibly?