Well, sent them an email at about 8:30 this morning and had a reply within 10 minutes! The very nice man from SFS said that if I sent him an OEM hose kit then he would let me know the price for making it in silicon hose and then if we got a few orders in then they would make the tooling for the kit.
I've emailed him back to ask how many kits he would need orders for before they create the tooling so just waiting to hear back again. I'm also going to enquire about if we got a group buy on it for the forum would we get a discount and would we all be able to select different colours too. They do all the usual silicon vibrant colours eg. blue, green, red, black, purple...
UPDATE: Wow, in the time it took me to write this post he's emailed back again! Good service is always a good sign. He said he'd need a minimum of ten kits ordered and he won't know how much a kit will cost until he's seen the oem parts. the tooling cost wil also not be known until he's seen the oem pipes and then got an order for 10 sets.
Funds allowing, if we got say 6 to 8 of us together then i'd probably buy the extra (depending on costs) and sell them seperately.
Another point is does anyone have a spare set of OEM hoses kicking about or am I going to have to buy a set to send to him then sell them on after?

I see that fazerspares has a full oem set for £25 if noone has a spare set sitting about so I wouldn't mind getting that and sending it on to sfs.