Can one say:
1-I want to have cut my hair.
2-I want to have repaired my car.
1a-I want to have my hair cut.
2a-I want to have my car repaired.
3-I want to get cut my hair.
4-I want to get repaired my car.
3a-I want to get my hair cut.
4a-I want to get my car repaired.
No, only sentences 1a, 2a, 3a, and 4a are correct.