I drive from and back from sunway to sg buloh thru nkve everyday for work during peak hours. Uphill is not a problem for me.

Brake , first gear, move abit but don't follow so close to the front car, see front car brake, u clutch in, let the car roll to a halt, front car move some distance, release clutch and move again. Rinse and repeat .

Roll back abit is ok what. At least most cars wont follow so close on an uphill. What so difficult ? If rev 99 on a hill means either the driver not familiar with the car yet or noob driver who doesn't know how to save fuel , thus following so damn close to the front car or noob driver who doesn't realise that this can burn the clutch if done for long period of time, or the car has racing clutch which is so easy to stall the engine if don't rev high during clutch release.

Not all k-car have to take out the whole engine to change clutch. Only some models.
At least I know Viva only need to take out the bumper to replace the clutch.