Hello Blue2Steve
I have the exact same van as you and have lowered mine all round this week!
I just wrote more of an extensive explanation on another thread about lowering a mk7.
This is how I did mine briefly
Gaz used mine a guinea pig had 2 Coilovers for the front made up at £180 each. These are height adjustable only the damping is fixed rate and if you wanted can go lower enough to put the Sport Van's front bumper on the floor! I've not done this!
On the rear I had a set of Flat leaf springs. I had these on my Mk6 so I kept them when I scrapped my old 52 plate and had them shot blasted/powder coated and the MK7 bushes installed. I have seen OE leaf spring re-cambered to give a similar drop. Mine are fitted with a set of shortened Gaz shocks on the rear. These aren't really necessary the standard ford ones work just fine.
I don't know how to up load pictures but give me an e-mail address and I can send you some pictures as mine is also the same Blue same as yours!
This firm were happy to make up some replacement coil springs if I could have sent them a spring to work from
http://www.springcoil.co.uk/Fitting the parts is a straight forward swap though the heat this week made it harder than it should have been!
The hardest part is getting the bits to begin with as very little is available of the shelf like it is for VW Transporters.
Good luck feel free to message me and I'll take you through in more detail how I lowered mine in more detail.
Regards
Edd