your personal choice of course but you would be much better off using a new or nearly new set up. the original set up was venturie and was years behind the stuff thats out today. you will have to renew the evaporator and the lpg tank tested and dated and all hoses and lpg pipes so you will have your work cut out anyway. the injector set up will need renewing and the list goes on unless you want it to be unreliable. the brc landy was i think the best and there was an lpg map on the e.c.u that T4 could enable. have a look on tinley tech website for some idea . you can download an app and retune yourself like i do. like i say its your choice absolutely and i wish you all the best if thats what you would like to do. im only offering a little advise as i have been down this choice road myself. i fitted my lpg setup myself and it was new and never looked back. it was a steep learning curve at the time but it is doable. good luck with whatever you choose to do. ...