when you gonna add detail to your hardsurface sculpts using alphas is one of the best options to speed up your workflow

so you can use this product that comes with 219 alpha in these categories:

Primitives

bolts

Disks

panels

Miscs

pipes

base element

Vents

As a gift put a mech model in both low and high poly phases in OBJ, FBX, and BLEND file format.

   -also, use can use a Bevel (0.002 size and 2 edges) and subdivision surface (if you are using a blender, modifiers exist just turn them on!)