Yeah, I got HKS to replace a couple of manifolds under warranty and the replacement ones had more meat left on them, however, I have seen them crack all over the casting.
The remote actuator is mounted via a fabricated bracket and utilized existing holes in the head if I recall correctly, and hooked up with a fabricated adjustable extended rod.
The turbo with the actuator fitted to it can be set up on the bench, however, the turbo with the remote can only be tuned and synchronized in situ with a MityVac.
Not sure if the GTX2867 will fit or not I am afraid.
The 2530s fitted straight out the box, however, one of the Garrets required a bit of "fabrication" to get it to fit.
As I said shoehorned in.