Gq tb48 turbo

[mudbug]

Hi guys i have some questions I currently drive a GQ tb45 turbo I did this conversion August last year and , I am looking at increasing the power I have at the moment ( yes I have been bitten by the power bug and I think its terminal ) I am thinking of putting a GU tb48 in my GQ and plumbing it into the turbo I have now ( Garrett 3582 ball bearing water oil cooled )
My questions are
Would buying a low km tb48 and lets say new rings and bearings a general check of the engine and installing it into my GQ Auto wagon with moderate boost ( and getting from what I have read approx. 250 -270rwkw ) , would that be a cheaper option than trying to increase what I have now with moderate boost and a reliable 161rwkw out of the TB45 , I am looking at reliability so IF a standard tb48 turbo can get 250-270rwkw ( reliability ? ) would the TB45 with the equivalent money spent on to get 250-270rwkw or buying TB48 motor and converting, what would be the best option ????
Any guesses as to how much a low tb48 would cost and where would be the best places to start to look
Will the tb48 be an easy bolt in fit or is there a major conversion in front of me , I would like to keep my auto trans I have now ( GQ ) if possible
what would I have to do to the TB45 to get 250-270rwkw and any guesses to how much that would cost
Would the then TB45 turbo be reliable compared to a standard TB48 turbo
Now as far as the rwkw go I don't no how accurate it is with the TB48 turbo I have only just started reading up about this , who has done this conversion and will I get this sort of power ??
As far as a turbo for the TB48 will the Garrett 3582 be a good choice or will I have to source a better one ??
A this stage I am thinking the TB48 conversion might be a cheaper and more reliable source of gaining that extra fun factor IF its a straight forward conversion and IF the motor is cheap enough, one price I have so far for a low km TB48 is approx. $4gs is that good or bad

Power Hungry