Ed, I guess you know this, but I think you have to go for the Street Rod classification. AS I did. Of course, I had the donor VW registration/title, so that helped. Did not have to show anybody the car. No inspection. Do you have a donor title? If this car was built up from scratch, not sure how MD deals w that. If you take it in to be looked at by a certified MD gov't employee, I can about gar-un-tee your punch list will get a lot longer, and your temper will grow a lot shorter. As always, keep us posted.
PS Street Rod in MD means "substantially modified". So please tell me you have an old VIN somewhere that can be used and a good title to go with it. If there is a category for hand built, I don't know about that.