Humidor problems with dry ambient air

[Anaxagoras]

My wife got me a beautiful custom made humidor from a well regarded manufacturer. In the warmer months when the ambient humidity is high it's great, seals perfectly. 

In the colder months, when our forced hot air kicks on the air in the house gets very dry, rh in the teens. The exterior wood contracts while the Spanish cedar in box does not, and the whole humidor warps and the lid no longer closes properly and it leaks like a submarine with a screen door.

I reached out to the guy who made it but there wasn't much he could do. The humidor has unfortunately sat in the closet for over 2 years now, because it's not worth the hassle of using for just a half the year.

Ultimately I need to get the air outside the humidor wetter. A whole house humidifier is out of the question because we're looking for a new house. A room humidifier doesn't make sense because of the open floor plan, and that need to fill it with a bucket of water 1-2x a day. I've decided I'm going to make a turducken with my humidor and a tupperdor. Basically put the humidor in a large gasketed Tupperware box and only remove it when ambient humidity drops, or when I want the show piece for a few hours.

My question is what would be a decent target RH for boveda bags for the Tupperware box to start with? I know there might be some trial and error. Stick with the same rh boveda bags I would keep in the humidor probably 62 or 65% rh? Or something more similar to my ambient household air in the summer like a 49% or 58%?

[Fuzz]

Or you could get yourself a pedestal cabinet and pop the wooden humidor underneath a perspex top. Season the humidor then keep some humidity beads or bovedas behind the humidor out of sight.

[Anaxagoras]

That's a great idea, thank you.

[Fuzz]

Just make sure you have an airtight foam seal around the perspex where it meets the base.