No.
I advised against the roll centre kit as the car is not super low and I'm not a big fan of the ball joints used. It's a case of people assuming they need stuff just because someone makes it. Not always the case.
Adjustable sway bar links? Why would you? They should only ever be adjusted to the exact same length as each other, if they are adjusted to different lengths something is wrong.
The reason I advised to get the links and ball joints is that they are different to the ones in a RS Liberty and it adds substantially to the conversion if you buy them separately. The ball joints themselves are fairly inexpensive but the tapered adapter isn't and if the ball joint is removed the tapered adapter is usually lost.