what type of car is it???
yes u can change it but its a expensive things to do,,cz u have to buy right hand desh board,,if it is power window n controls r on the left side of the front door,,thn u have 2 buy right hand control door cover only,,n if the clutch padle works on wire then its easy to shift,,but if it is drum,,thn its again a hadache for u,,brake can be remove easily but it take time..n u have to buy right hand steering box,,,
it wil take 2 much time n need to much expertise,,so if u r willing to change it,,,thn try to chose an expert mechanic.
best wishes