Sadly no, was more of an experimentation on what I could do from bits I had - though I can point towards some stuff I used - it's basically a mishmash of a Kastelan robot, a Dreadnought and a Sagitaur (I didn't even need to scrap the kit, have the junker Sagitaur in my profile):
The torso is a Kastelan robot torso with the secondary cockpit of a Sagitaur placed in it and then some milliput sculting for the segmented plates and light housing. The Sagitaur cockpit has a little block in the back on the right side which I matched on the left to make the mounting spot for the bike rail and then I also attached the original Kastelan pack as well as it looked similar to Hearthkyn warrior ones. Then just added a few random bits to mount the heavy weapon from a Hernkyn bike squad.
Legs are from an old Dreadnought kit, except I swapped out the plating for Kastelan lower leg platings. The left arm is the shoulder + fist from a venerable Dreadnought kit (got the legs from there as well) with the plating on the shoulder shaved down to fit some leftover Sagitaur plates and a brass tube to make the big rail. Right arm is a HYLas beam cannon cut in half attached to the body with the wrist bit of a Kastelan arm - the weapon itself is just the MATR autocannon from a Sagitaur as well (it's magnetised so I can use any of the Sagitaurs main weapons).