If the item was brand new then why did you open the box to 'check everything was there'. I see this a lot on online listings but can never understand it. If I were to buy an iPhone from Apple, I'd be pretty sure that the iPhone was inside without having to open the box first to check...

Anyways GL with the sale. I've seen the drone before. It's pretty cool

Perfectly fine to ask. Because the box has a handle it wasn't cellophane wrapped so I undid the tape and opened the box to see the actual drone. From the second picture, you can see that all the boxes within, containing the manual and propellers etc are still sealed. More just curiousity really.
Will accept £280 including postage within U.K.