Have seen all-matching WW2-dated Lugers done to new EU spec already. Prices have come down just a bit, but never below £1000. I'll have just a bit more than that by the time I go, so here's hoping.
MP40s might be harder to find. With the new EU spec now enshrined in U.K. law, they've all disappeared. I should just be able to stretch the price for one, but the few EU spec ones I've seen haven't stuck around for long.
The spec doesn't bother me too much, to be honest. They'll only be hung on a wall or displayed in a cabinet. Still hurts, though, seeing the takedown lever on the EU spec Lugers stuck in place with a blob of weld.

B.B.