u/ImmediateEconomy8516

How do I frame this out? Not an egress, never needs to be opened (but ideally leave that option for next owner 10-50 years down the road) but there isn’t enough margin here for even 1x3s and 1/2 inch drywall.

Planned team was Infernape, Staraptor, Weavile, Gyarados, Roserade, Garchomp, who do I drop for this little full odds homie that I picked up while I worked on some early EVs.. first gen 4 run through in ~15 years.