Based on my experience with my '64 Overlander, I would say forge ahead. I know that it doesn't always work, but when I pull into a park's reception area and proceed to the registration desk I follow a "don't tell if not asked" policy regarding the age of my coach - - the question, however, can be answered rather easily by looking at the license plate frame on my coach - - at the top - -
1964 - - and on the bottom - - Overlander.
Prior to restoration, I was denyed access to only one park of the several that had age restrictions on coaches. Since restoration, I haven't been questioned. When making advanced reservations with a campground known to have such regulations, I always ask about my coach's acceptance - - the only times that I have been turned down under those conditions have been when it was an issue with lack of a gray water tank on the coach.
So far, the restoration on my coach has included refurbishing the interior, replacing major appliances (furnace, water heater, water pump, water tank, refrigerator, air conditioner, power inverter [Univolt failed and with solar panels the Inverter seemed to make more sense] and water filter), refinishing cabinetry, refinishing walls, new upholstery, new drapes, and a full polish job with new plasticoat. I probably have about the cost of a new brand X in the restoration, but only about 1/3 the cost of a similar new Airstream.
I am just a bit nervous about the reception of my '78 Argosy Minuet and '75 Cadillac tow vehicle this summer. The Argosy will be virtually restored on the inside, but the paint is going to have to wait for a year or two. The Cadillac is a well-maintained nearly original car with about 110,000 miles.
Good luck with your restoration. I am sure that your Overlander will give you many years of enjoyment. I have know my Overlander since it was purchased new by friends' of my family.
The before of my Overlander:
The after of my Overlander:
Kevin