I've cobbled mine together and its fine.Bought a 2nd hand Scudo (£1500 with 112000 miles done), and put two 250 ltr upright tanks in (already had one being used in back of car).Got a cage made up special £250 nothing fancy, pump and varistream (£180 i think, on offer for the two) Battery, Pole and cheap 60mtr reel from B&Q plus 100mtrs of 8mm hose. All sourced from different suppliers according to to cheapest price. I did use my car for 18 mths till i ruined the suspension and was forced to get the van. Best move ever made going wfp, although i still trad the odd few which i can't do with wfp.Hope this helps.

Syd