Newbie, build or buy

[handles]

So what electronics do you have? Maybe other forum members can help you.
You might want to start a thread of your own rather than end up hijacking this one.

Kit

What are you smoking, brah? The man asked for an opinion on whether to build or buy, which I duly gave. How is that hijacking a thread?

A custom machine by someone who does it for a living, or a good commercial is optimized. The problems that you haven't even thought of as a newbie are all ironed out.
A homebuild contains all the errors and mistakes from someone doing it for the first time. Therefore that will require tinkering at best, or rebuilding from scratch at worst.

As DG said, if you want to tinker because it is fun, build it yourself. If you want to run it as part of your commercial operation buy a custom made or a commercially built one.