Yup, sometimes, well, now you can buy just about everyhing scale these days, for anything else that you cant, there's 3D printing, and a million free prints on the web.
Your build. However, is not something that is easily attained without the skill and machines you are using.
I wish I had the patience to build mine. I drew out a sketch from scratch while deployed once based off of a scx10 chassis, and bent up a couple of pieces of tube and rod. And that was it.
Keep up the good work!