I just checked eBay. The seller in question, I believe is top-rank-records. He has 39 listings related to the Datsun 510, one of which is for the instructions. 37 of the listings are at $3.00. The chassis and tire auctions are at $8.00. If one person were to buy each of these items, excluding shipping, it would amount to $127, not $200. I would think that, that is not top-rank-records' intention. I would assume that they are appealing to individuals who, for whatever reason, need a part replaced. I know that Revell is generous, maybe too much so, in that with the proper documentation, they will send out replacement parts. In my thinking, I would only use this service, if something was wrong with a kit part that was Revell's fault. If it was my own fault because I lost it, or wrecked it in the build process, then why should it be on Revell's dime. Remember, this is just my opinion and how I feel about it. LOL By listing these Datsun 510 parts, top-rank-records is offering a less costly alternative to buying another kit, for people who think the same way I do. Just another way to look at the situation.