Ordering by email list has no limit on numbers, AFAIK. £30 threshold for free shipping applied last year. Now- who knows? I have just sent an order for 200 items (I have been waiting since 15th March!) and I'm expecting to pay VAT on top.
Thanks for the info. Walts-Trains. The website still has the 'no spare parts' message, so I'm hoping to have got in before the rush, though delivery will no doubt take a few weeks...