i think that is a t3/t04e garret turbine. at Tong Turbo you can get one of those for RM1600 brand new. the compressor housing without the wording and chromed will cost you around RM400 (a bit chit-chat with Tong will cut of maybe RM 50 bucks....just maybe)
fitting in a big turbine need a damn lot of work. need to upgrade the fueling system like bigger fuel pump, injectors, ecu, etc, etc, etc. you must also upgrade your cooling system like changing the i/c, the i/c piping, oil cooler, etc, etc, etc. and a very proper tuning must be done or your engine will go KABOOM.
plus, you must remember, bigger turbine will effect your low end power cause it will spool a bit late. for t3/t04e tubine, the spooling starts at 3200 to 3500 rpm and you will reach full boost at 4000 rpm. but the mid range and top end power will increase. that is if the turbine does not b.bearing equipped.
just giving my opinion cause i`m using a t3/t04e turbine right now. do ask any turbo sifus out there for a better advice. btw, RM3000 for a second hand non b.bearing turbine is too expensive. for that range you can get a better b.bearing turbine.