I will wait... I'm doing the backs over Christmas, no rush for the fronts but want to do in the spring.
There is this:
Porsche 986 987 Boxster & Boxster S 97-12 Adjustable Front Tension Rods #6435 - Top Speed Pro 1 Performance
Not much more expensive (I think that pricing is for a pair)
But then we would have to figure some way to clip on the front brake cooling ducts.