Question post signs and panels

Hey again, does anybody know of some good articles regarding post and panel signs? I've literally only done a couple small panel signs and no post signs but I've been getting requests night and day for them. I don't know much about that area and I want to double down and start doing them since I don't do wraps. I don't really know the proper techniques and assembly choices for them. Panel signs look fairly simple.... A big pice of aluminum in the size wanted and then slap your printed vinyl on.... Bolt it to xyz surface desired by customer.... But two posts always have a nice border and frame and I don't know where to source that.

I have a sign craft subscription but can't seem to find anything regarding these there.

Any tips would be appreciated!

 

Thank you everybody this is amazing! I appreciate the help and links!

Like I said in my op I know that wraps can be a money maker but as a single person shop it's not feasible for me. If I could source an installer and just sell the print I would be on board. But I'm going to just pursue the sign and market the hardest with vehicle graphics and apparel as well.