Clutch replacement - Exedy TYK6932 oor other - need advice

[XC9000]

Hi guys

I must replace my clutch.

I'm doing hill climb work which is obviously hard on a clutch.

I want to go up in durability and I don't think the heavy duty would be appropriate. Or would it?

In the Exedy range there is an 'SO' but I don't yet know the cost of it.

I would appreciate any advice, but please be conscious that I am on a budget.

Any other recommendations on brands please?

Also, I want to use an off-the-shelf lighter flywheel, can anybody give me recommendations on aluminium vs Chrome Moly or other please?

Thx

Wayne