I did ask SMW on the phone when I ordered it if it came with a spare knife, they said it did but it hasn't.
I also mentioned the bulb as I knew it wasn't LED, they said they don't know what bulb it takes so I'd have to take it out when it arrives to see what it needs. The instructions say to take to a dealer to replace the bulb, there's no guidence on how to do it.
Hobkirks are my nearest Juki dealer according to the above link so I'll give them a ring. If that fails I'll ring the others suggested. Thanks guys
*Edited to say I've sussed out the bulb myself lol