Good luck with all that then!
My point about tyre wear was really that if you use anything that resembles an 'off-road' tread pattern (ie. wider spaced knobbles) both on and off tramac, then the wear is typically accelerated as the knobbles/edges get worn on the dirt, and the the heat generated by the higher speeds back on tarmac increases the wear as the loose rubber comes off... significantly reducing [useful] tyre life?
That is not to say you couldn't still ride on them for many more miles (hell, if you can't see the carcass, it ain't Mondo Enduro!), only that the off-road grip will be significantly diminished... you'll also probably find that the tyre 'squares off' much more, as the centre knobs wear down on the road - making a smooth transition from upright to leant over more sketchy, particularly towards the end of the life of the tyre?
That said, these had done the best part of 5000 miles:
As for shipping... what I mean is you can get pretty much any bike shop to mail order you some tyres to any address (be it a hotel, workshop or DHL office for example) within a few days... once they start wearing to the point to want to change them, just get online or go to a local tyre/bike shop, and get some sent to where you'll be?
Just don't be too brand precious!
Jx