Thanks guys.
The airbox is a Carbon Dynamic Airbox (CDA) made by BMC.
A mate at work offered it me for a fraction of the new price, so I thought I may as well use it
I wouldn't fancy filling my system with water yet TT, let alone pressurise it!
There's still a couple of small bore hoses I need to fit/replace, not to mention several missing jubilee clips. Oh, and my filler cap doesn't fit, which I'm slightly annoyed about...
I suppose I'm going to have to get around to doing the wiring soon, I keep putting it off, but I'm running out of other things to do now!