The more pics and info you can provide, the more people will help. I can tell you that pretty much anything you would need to know is on this site somewhere, can be hard to find but just research the heck out of it until you can ask very specific questions. This can take days.
Being new is fine we all have to start somewhere. But you also have to do your due diligence as well and meet people halfway.
At least in my experience. And I started some dumb threads and asked some dumb questions but after searching and reading for days, I was able to understand and realized that the info was here for me the whole time.
For instance, saying you need help with db30 throttle linkage is not specific enough. Not enough info for people to help.
But if you said “I have X model db30, with X engine, X throttle cable, X carb and I need help with X problem. Here are some pics”
I guarantee you would get more and better responses.
So it’s on you to know what you have because people can’t read minds.
Good luck.
I know nothing about the non vintage doodlebugs so sorry I can’t help in that way but hopefully this helped you on some level.