kia diesal sportage has mazda RF/R2 engines
they are quite good
bt i ve seem in pakwheel forum(pakistan forum like auto lanka) tat they have to put toyota 3c engines(im hav no idea abt this engine type)
my point is tat u can consider toyota engines also.
jst do some research in pakwheel forum
but having said tat even mazda R2/RF engine is quite good and economical
they are used in mazda bongo vans, some vannettes, old versions of suzuki escudo.
so good luck in hunting for engines