Lunch time grab from BHF charity shop for £2.99 (nice to catch-up with Heretic and III, interesting to see the prequels back to back too) and miraculously the box is near mint...
Should be noted that the UK set is only 5 discs, not the 6 disc including the 'you've never seen' version of the original film that seems included in the US R1 set, but I picked up that version of the first film for £1 in CEX so no big loss.