Just ask him ..its an EVO 3 engine..they made them in different sizes... he said so.
http://www.gumtree.com.au/s-ad/maylands/cars-vans-utes/gsr-lancer-engine-evo-3-engine-non-turbo/1036690326
I had exactly the same thing happen and I had to suck it up and buy new ones because as Jamo said that plastic nylon guide is the problem. Mine snapped the wire.
If anyone from the forum picks this cheap GSR up Id love a gearbox.
http://www.gumtree.com.au/s-ad/chipping-norton/cars-vans-utes/mitsibishi-gsr-1-8-turbo/1029304676