Jarrad Clark

Hi guys, i have an '89 L series with a a tired EA82 MPFI XT. I am trying to decide what to do. I could buy a low Kms jap import for AU$660. Or, rebuild the original for a similar price, but without the heads of injectors done, which seems like a waste of time and money. The Jap import available is a turbo model . Can anyone give advice on how much re-wiring is required ($/ hours). Basically i am looking at putting the same engine in, but turbo'd and need to know how much extra i am looking at. Any help would be great.