you gotta know how to sew and have a Good Sewing Machine. you need an air compressor and tack gun that’ll take multpile sizes. there’s a bunch of little unique tools that most people don’t have, mini catspaw, bent nose pliers, etc.

you need a workspace with big, flat, clean workspaces that won’t mar or mess up stuff.

the materials are not always available and not always in the sizes you want.

now that you’ve spent at least $1000, you can start learning about how fabrics pull, batting lofts, and what “shows” to someone looking at it.

Well, easy is in the eye of the tool holder. It’s certainly achievable to do it yourself, but there is a large skill set involved. Not to mention the tools necessary. A capable sewing machine is a necessity.