I'm aware of the contract but unfortunately getting them shipped over from the US to the UK for example is expensive, what with the extra charges incurred these days, It can nigh on triple the cost of a bare PCB and that's without sourcing the parts to build, It was different in the early days of the XT-IDE project, There was no GSP / Import duties / VAT or extra courier charges, I just paid the shipping cost $13 to ship 3 complete kits and 10 days later they were at my door, Unfortunately times change and as it then was an affordable option, These days it's getting more un-affordable.
Not your fault i know,