Did it myself
Say hello to Tinosaurus Rex, Son of Punch-press (.223 Saiga).
I don't know how many hours I spent on the paint job (including stock forend and magazines, not shown) . . . most of it was in applying, cutting, and then removing successive layers of masking tape. I didn't realize until I'd finished it that this paint-job is Classic Pinball Machine -- but it's in my favorite colors, and that's what I wanted. T-Rex is shown here next to my Tactical Pet, who came standard with silencer and camo paint job (no modification needed).
That's a Phantom flash-hider on the front, attached with a clip; can't recall who sold me that, but they make a better version now. No matter; it does an outstanding job, and stays put.
Second pic -- I didn't like the rear sight, so I made it a peeper. Yes, that's a flat washer, and yes, it's way off center, so I could center the front sight between its ears (it annoyed me being off-center). BTW, I learned how to reinstall the rear sight, which I almost gave up on, but turned out to be a snap.
Last, a closeup of my free-floated forend, which I painstakingly handcrafted from some cheap aluminum angle stock. The little piece of rail came free with my Ruger 22/45 Mk III, and I had no plans for it. I can't recall where I bought the 5-position foregrip, but I'm not very fond of it -- just never got around to finishing that mod. Superior cooling.
Total cost: less than $100, for certain.