I had the same problem finding a UK supplier for those things...I can't remember who I got them through in the end, but you might want to try Mike at Jeepey...he's a very helpful guy.Unless your rear end is really soft and saggy (the Jeeps, not yours), I doubt you will need any more than good shocks (Sensa-Trac) to firm up the ride. I wouldn't waste a lot of money buying the quick strut kits for all four corners...probably nice to have, but not essential for road use.IMHO, of course.
From someone who has spent thousands on WJ suspension, the best setup for on & off road was OME diesel HD springs and Rough Country Hydro (the cheaper ones not gas) shocks.Cheapest place for OME springs was TBR UK (www.tbruk.com) Also if making the effort get new spring seat rubbers & new rear A arm bushes (check all bushes really) Will make a world of difference over a stock shagged out suspension, and will give around 1.5-2" of lift.I did run my WG on the above with 2" spacers and it was the best setup I have had on it, much better ride than the IRO 5" long arm I have on now (and may be going back to the OME 3.5" lift with short arms myself)