I had to send a machine in for serviceing, I bought it on ebay and it was guaranteed. The seller said if I wanted to have it guaranteed thru shipping (he paid for shipping charges) then I should take it to UPS and have it packaged. I did that, it cost 25 for them to box it and ship it and it was nice not having to worry about it getting there ok. He always packaged his own but was willing to take a chance and stand behind it, I couldn't afford that so the 25 was nothing. I had the shipping box too but UPS will put it in their own box even if that means putting your box into thiers which if you are paying shipping charges it goes up due to added weight. I'm thinking about putting my Viking #1, the one that was serviced on eBay and I'm going to give the buyer the option of paying 25 extra for packaging so that it has that guarantee. My machine is not where close to 4000 so alot more to have to cover, I'd have it professionally package and let UPS take the responsiblility.