hello , i am after a carburator 4 k or 5 k to retrofit on a Toyota van 1981 1,3 ltr engine petrol , manual start , i realise that it sound nearly impossible to find a second -hand one and have it reconditioned , however , i will appreciate so much , if anyone could guide me , what are the best option to adapt one , and if so , which one i should buy and where ? we bought one online and a part was missing ..300 euros , now it is used alas as paper holder ..lol..i join pictures of the actual one we have , and despite having change all the joins , the Toyota still used 20 liter of petrol for 100 kms , double what it should do !!!and in France the petrol is 3 euros the liter , so 6 dollars !! LOL..LOL ..the Toyota is in France at my brother "place , he ask me to try to find some infos or solution in Australia , as not many Toyota were imported in France , He is a very competent mechanic used to work of all sort of engines , but he is not fluent in English and i live in OZ and i had myself few Toyota in Oz in 36 years i emigrate here .. i will realy appreciate any infos , guidance.. ect , I am in Noosa QLD , but travel to Sydney regularly .. thank you so much , Catherine