Don't sweat it, these things happen and I like to think we're all big enough and ugly enough to let it go.
If you want them and Nick is happy to do this then you could have them.
Either send me the money as a PP gift and Nick could send them to you. Or Nick could refund me the money and you could buy them?
I only wanted them for a future build so wouldn't be using them straight away.
Happy either way (i.e. keep to the original plan or one of the ideas above) just keep me posted