A few questions about shipping Internationally on Ebay. Quantifying "Lot" items on the customs forms?

So, how do you quantify "lot" items on customs forms, keep it as one item or break it up? Also, does the maximum items per box refer to 5 auctions or 5 individual items?

I sold 4 of my "Buy It Now" auctions to someone outside the United States. When I was creating a shipping label through Paypal, it asked me to list the items on the customs form and give the value of each of these items. Ebay/Paypal automatically filled out part of the form as though I sold 4 items (each Buy It Now item was listed as a seperate item) and it listed the selling price of each of these 4 items as the value. However, I really sold 17 items (2 single items, a lot of 7 items, and a lot of 8 items). The items are diecast toy cars similiar to Hot Wheels. They shipped to Russia.

Anyways, I left the 2 single item auctions alone, but changed the quantity on the one lot to 7 and the quantity on the other lot to 8 to reflect the true number of items, however the form assumed I had 7 lots of the one item and 8 lots of the other item and was multiplying the quantity by the value columm! The value than exceed the allowable maximum amount. So I decided to list each of the 17 items individually and divide the value of each lot by the number of items in each lot to get the value of each item individually (basically I itemized everything), but once I got the first 5 items listed, I was out of lines and could not add the other 12 items because only 5 items are allowed per box! I gave up and went back to how Ebay/Paypal originally filled the form out: 4 items with each being a quantity of 1. I ended up putting all 17 cars in one box, but each auction is wrapped individually making it look as though there are only 4 items in the box. When I dropped the box off at the Post Office, I told the lady that I wasn't sure how to do the quantities and she acted like it wasn't a big deal. I am worried that if the box gets inspected and I quantified incorrectly that I will be in some sort of trouble! Thank You!