You're correct...... think of you as something you are not, but are still taking work away from your local area sign shops. No need to white wash, but if the foo sh!ts, wear it.
For me, and I'm only speaking for myself, I have no interest in helping someone who is not in this industry, regardless of how they slant the facts. Sure, everyone starts somewhere, but not usually coming in the back door. I'd rather help someone who pushes a broom in a shop and help them further themselves in this industry. Perhaps, if I was to help you, and it wouldn't work, then what ?? Best to get your information, by laying
ALL your cards out on the table and hoping for the best.
Lastly, what in the world kind of signs are you making which put vinyl on on .030 or .040 styrene for outside installations ?? How are these signs being used ??
Good luck.