I looked into the differences between the Mastiff suspension (same as the HR Baggi IIRC) and the standard height Baggi some time ago as I was considering putting the longer travel kit on my Mastiff.
I was told by my dealer that:
The swing arm is the same dimensions (the Mastiff item may have a different part no. as it does not have the tabs for the chain guide under the swing arm next to the rear sprocket. Do the HR Baghiras have this chain guide?).
The rear shock is different as the full height Baggi gets its extra travel from a longer shock with more stroke.
The rear 'dog bones' and linkage are the same on both bikes.
The front forks are completely different (and non adjustable on the HR bikes).
I will emphasise that this is what I was told by the dealer (with the help of his parts book), and I have not carried out any measurements myself on the two types of bike.
I have also been told that the Mastiff frame has a slightly steeper head angle which sharpens up the steering